HYBRID POWER AMPLIFIER WITH GAN-ON-SI AND GAN-ON-SIC CIRCUITS

Prity Kirit Patel

Patent

Atlas literature

Patent

US 12,028,022 B2

HYBRID POWER AMPLIFIER WITH GAN-ON-SI AND GAN-ON-SIC CIRCUITS

Prity Kirit Patel

MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC., Lowell, MA (US)·Jul. 2, 2024·US

Drawings

Patent drawings and their descriptions. Click a drawing to enlarge it.

FIG. 1

FIG. 1 is a simpliﬁed circuit diagram of a Doherty power ampliﬁer in the related art.

FIG. 2

FIG. 2 is a schematic diagram of a power ampliﬁer in accordance with various embodiments of the present disclo- sure.

FIG. 3

FIG. 3 is a package layout for a power ampliﬁer package that includes a main ampliﬁer circuit and a peaking ampliﬁer circuit in accordance with various …

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

2 independent · 4 dependent

1
IndependentGaNSiGaNSiCHybrid Doherty power amplifier
A power ampliﬁer for amplifying an input signal to an 30 the Doherty power ampliﬁer is disposed on a printed output signal, comprising: circuit board (PCB); and a peaking ampliﬁer circuit, wherein the peaking ampliﬁer a pre-driver ampliﬁer circuit is positioned on the PCB circuit is formed in gallium nitride materials on a having an output coupled to an input of the RF power silicon substrate; and ampliﬁer, the output feeding the main ampliﬁer circuit a main ampliﬁer circuit, wherein the main ampliﬁer 35 and the peaking ampliﬁer circuit. circuit is formed in gallium nitride materials on a
16
IndependentGaNSiGaNSiCHybrid Doherty power amplifier
A method for amplifying an input signal to an output silicon carbide substrate. signal, comprising:
1. 17
  Dependent← claim 16Hybrid Doherty power amplifier
  The method according to claim 16, wherein the single
2. 18
  Dependent← claim 16Hybrid Doherty power amplifier
  The method according to claim 16, further comprising ampliﬁer circuit. providing a pre-driver ampliﬁer circuit in the single package
3. 20
  Dependent← claim 16Hybrid Doherty power amplifier
  The method according to claim 16, wherein at least the power ampliﬁer is disposed on a printed circuit board peaking ampliﬁer circuit and the main ampliﬁer circuit (PCB); and together form a Doherty power ampliﬁer. a pre-driver ampliﬁer circuit is positioned on the PCB having an output coupled to an input of the power ∗ ∗ ∗ ∗ ∗

Device structures

Layer stacks claimed or described, ordered top of device to substrate.

Hybrid Doherty power amplifier

SiCmain amplifier substrate

GaNmain amplifier circuit

Sipeaking amplifier substrate

GaNpeaking amplifier circuit

Materials

Materials described outside the worked examples.

gallium nitride on silicon

GaN

Peaking Amplifier Circuit Material

Main Amplifier Circuit Material

silicon substrate

Substrate For Peaking Amplifier And Pre Driver

Cited prior art

Patents and literature cited by this patent (applicant and examiner references).

Cited patents · 137

US 4,375,054 A4,375,054 A 2/1983 Pavio
US 6,085,074 A6,085,074 A 7/2000 Cygan
US 6,262,629 B16,262,629 B1 7/2001 Stengel et al.
US 6,649,287 B26,649,287 B2 11/2003 Weeks et al.
US 6,791,417 B26,791,417 B2 9/2004 Pengelly et al.
US 7,078,976 B27,078,976 B2 7/2006 Blednov
US 7,109,790 B27,109,790 B2 9/2006 Kwon et al.

Why these are connected

Related documents with shared materials, methods, properties, or citations.

HYBRID POWER AMPLIFIER WITH GAN-ON-SI AND GAN-ON-SIC CIRCUITS | Matter42 Literature

Cited non-patent literature · 16

A high-efficiency 100-W four-stage Doherty GaN HEMT power ampliﬁer module for WCDMA systems. Andrei Grebennikov, “A high-efficiency 100-W four-stage Doherty GaN HEMT power ampliﬁer module for WCDMA systems”, 2011 IEEE MTT-S International Microwave Symposium.
A Design Strategy for Bandwidth Enhance- ment in Three-Stage Doherty Power Ampliﬁer With Extended Dynamic Range. Barthwal Ayushi et al., “A Design Strategy for Bandwidth Enhance- ment in Three-Stage Doherty Power Ampliﬁer With Extended Dynamic Range”, IEEE Transactions on Microwave Theory and
A fully integrated Ku-band Doherty ampliﬁer MMIC. Techniques, Plenum, USA, vol. 66, No. 2, ISSN 0018-9480, Feb. 2018. C.F. Campbell, “A fully integrated Ku-band Doherty ampliﬁer MMIC”, IEEE Microwave and Guided Wave Letters, (Mar. 1, 1999), vol. 9, No. 3, doi: 10.1109/75.761678, ISSN 1051-8207, pp. 114-116.10.1109/75.761678
7 GHz MMIC GaN Doherty Power Ampliﬁer With 47% Efficiency at 7 dB Output Back-Off. Camarchia et al., “7 GHz MMIC GaN Doherty Power Ampliﬁer With 47% Efficiency at 7 dB Output Back-Off,” IEEE Microwave and Wireless Components Letters. Jan. 2013.
Reﬁne Biasing Networks for High PA Low Fre- quency Stability. Ceylan et al., “Reﬁne Biasing Networks for High PA Low Fre- quency Stability,” Microwave & RF, Apr. 17, 2018, pp. 1-6.
GaN HEMT Based Doherty Broadband Power Ampliﬁer. Cheng et al., “GaN HEMT Based Doherty Broadband Power Ampliﬁer,” Journal of Hangzhou Dianzi University (Natural Sci- ences), Mar. 15, 2017.
Frequency Analysis and Multiline Implementation of Compensated Impedance Inverter for Wideband Doherty High- Power Ampliﬁer Design. Cidronali et al., “Frequency Analysis and Multiline Implementation of Compensated Impedance Inverter for Wideband Doherty High- Power Ampliﬁer Design,” IEEE Transactions on Microwave Theory and Techniques. May 2016; 64(5):1359-72.
30.3% PAE HBT Doherty power ampliﬁer for 2.5-2.7 GHZ mobile WiMAX. Daehyun Kang et al., “30.3% PAE HBT Doherty power ampliﬁer for 2.5-2.7 GHZ mobile WiMAX,” Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International, IEEE, Piscataway, NJ,
Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs. USA, Piscataway, NJ, USA, (May 23, 2010), ISBN 978-1-4244- 6056-4, pp. 796-799. Daekyu Yu et al., “Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs”, Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE, IEEE, Piscataway, NJ, USA, (Jun. 11, 2006), doi:10.1109/RFIC.2006.1651114, ISBN 978-0-7803-9572-5, pp. 153-156. Daniel Popp et al., “High Power and High Bandwidth Digital Three-Way Doherty Power Ampliﬁer”, 2019 IEEE 20TH Wireless and Microwave Technology Conference (WAMICON), IEEE, (Apr. 8, 2019), doi: 10.1109/WAMICON.2019.8765455, pp. 1-6, XP033577671.10.1109/RFIC.2006.1651114
High-Efficiency Doherty Power Ampliﬁers: Historical Aspect and Modem Trends. Grebennikov et al., “High-Efficiency Doherty Power Ampliﬁers: Historical Aspect and Modem Trends,” Proceedings of the IEEE. Dec. 2012; 100(12):3190-219.
Doherty Linear Power Ampliﬁers for Mobile Handset Applications. Proceedings of Asia-Paciﬁc Microwave Conference. Kim et al., “Doherty Linear Power Ampliﬁers for Mobile Handset Applications. Proceedings of Asia-Paciﬁc Microwave Conference,” Dec. 2006; 1885-94. Merrick B et al., “A wideband Sequential Power Ampliﬁer”, 2014 IEEE Mtt-S International Microwave Symposium (IMS2014), IEEE, (Jun. 1, 2014), doi:10.1109/MWSYM.2014.6848592, pp. 1-3, XP032615303.10.1109/MWSYM.2014.6848592
A100 W Multi-Band Four-Way Integrated Doherty Ampliﬁer. Moronval et al., “A100 W Multi-Band Four-Way Integrated Doherty Ampliﬁer,” IEEE MTT-S International Microwave Symposium (IMS) May 22, 2016: 1-3.
K-Band GaAs MMIC Doherty Power Ampliﬁer for Microwave Radio With Optimized Driver. Quaglia et al., “K-Band GaAs MMIC Doherty Power Ampliﬁer for Microwave Radio With Optimized Driver,” IEEE Transactions on Microwave Theory and Techmques. Nov. 2014; 62(11):2518-25. Roberts Michael James, “Understanding the 3 level Doherty”, 2016 11TH European Microwave Integrated Circuits Conference (EUMIC), European Microwave Association, (Oct. 3, 2016), doi:10.1109/EUMIC.2016.7777583, pp. 428-432.10.1109/EUMIC.2016.7777583
Fully integrated three-way LDMOS Doherty PAs for 1.8-2.2 GHZ dual-band and 2.6 GHz m-MIMO 5G applica- tions. Vigneau et al., “Fully integrated three-way LDMOS Doherty PAs for 1.8-2.2 GHZ dual-band and 2.6 GHz m-MIMO 5G applica- tions,” Published in International Journal of Microwave and Wire- less Technologies, Mar. 1, 2021. Wicks B et al., “A 60-GHz fully-integrated Doherty power ampliﬁer based on 0.13-um CMOS process,” Radio Frequency Integrated Circuits Symposium, 2008. RFIC 2008. IEEE, IEEE, Piscataway, NJ, USA, (Jun. 17, 2008), ISBN 978-1-4244-1808-4, pp. 69-72. Xia Jing et al., “Improved Three-Stage Doherty Ampliﬁer Design With Impedance Compensation in Load Combiner for Broadband Applications”, IEEE Transactions On Microwave Theory and Tech- niques, Plenum, USA, vol. 67, No. 2, doi:10.1109/TMTT.2018. 2884404, ISSN 0018-9480, (Feb. 1, 2019), pp. 778-786.10.1109/TMTT.2018
Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs. Yu et al., “Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs,” IEEE Radio Frequency Integrated Circuits Sym- posium (RFIC). Jun. 11, 2006; 153-6.
Design of an S-Band Two-Way Inverted Asymmetrical Doherty Power Ampliﬁer for Long Term Evolution Applications. Zhou et al., “Design of an S-Band Two-Way Inverted Asymmetrical Doherty Power Ampliﬁer for Long Term Evolution Applications,” Progress in Electromagnetics Research Letters. 2013; 39:73-80.

Cited non-patent literature · 16

A high-efficiency 100-W four-stage Doherty GaN HEMT power ampliﬁer module for WCDMA systems. Andrei Grebennikov, “A high-efficiency 100-W four-stage Doherty GaN HEMT power ampliﬁer module for WCDMA systems”, 2011 IEEE MTT-S International Microwave Symposium.
A Design Strategy for Bandwidth Enhance- ment in Three-Stage Doherty Power Ampliﬁer With Extended Dynamic Range. Barthwal Ayushi et al., “A Design Strategy for Bandwidth Enhance- ment in Three-Stage Doherty Power Ampliﬁer With Extended Dynamic Range”, IEEE Transactions on Microwave Theory and
A fully integrated Ku-band Doherty ampliﬁer MMIC. Techniques, Plenum, USA, vol. 66, No. 2, ISSN 0018-9480, Feb. 2018. C.F. Campbell, “A fully integrated Ku-band Doherty ampliﬁer MMIC”, IEEE Microwave and Guided Wave Letters, (Mar. 1, 1999), vol. 9, No. 3, doi: 10.1109/75.761678, ISSN 1051-8207, pp. 114-116.10.1109/75.761678
7 GHz MMIC GaN Doherty Power Ampliﬁer With 47% Efficiency at 7 dB Output Back-Off. Camarchia et al., “7 GHz MMIC GaN Doherty Power Ampliﬁer With 47% Efficiency at 7 dB Output Back-Off,” IEEE Microwave and Wireless Components Letters. Jan. 2013.
Reﬁne Biasing Networks for High PA Low Fre- quency Stability. Ceylan et al., “Reﬁne Biasing Networks for High PA Low Fre- quency Stability,” Microwave & RF, Apr. 17, 2018, pp. 1-6.
GaN HEMT Based Doherty Broadband Power Ampliﬁer. Cheng et al., “GaN HEMT Based Doherty Broadband Power Ampliﬁer,” Journal of Hangzhou Dianzi University (Natural Sci- ences), Mar. 15, 2017.
Frequency Analysis and Multiline Implementation of Compensated Impedance Inverter for Wideband Doherty High- Power Ampliﬁer Design. Cidronali et al., “Frequency Analysis and Multiline Implementation of Compensated Impedance Inverter for Wideband Doherty High- Power Ampliﬁer Design,” IEEE Transactions on Microwave Theory and Techniques. May 2016; 64(5):1359-72.
30.3% PAE HBT Doherty power ampliﬁer for 2.5-2.7 GHZ mobile WiMAX. Daehyun Kang et al., “30.3% PAE HBT Doherty power ampliﬁer for 2.5-2.7 GHZ mobile WiMAX,” Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International, IEEE, Piscataway, NJ,
Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs. USA, Piscataway, NJ, USA, (May 23, 2010), ISBN 978-1-4244- 6056-4, pp. 796-799. Daekyu Yu et al., “Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs”, Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE, IEEE, Piscataway, NJ, USA, (Jun. 11, 2006), doi:10.1109/RFIC.2006.1651114, ISBN 978-0-7803-9572-5, pp. 153-156. Daniel Popp et al., “High Power and High Bandwidth Digital Three-Way Doherty Power Ampliﬁer”, 2019 IEEE 20TH Wireless and Microwave Technology Conference (WAMICON), IEEE, (Apr. 8, 2019), doi: 10.1109/WAMICON.2019.8765455, pp. 1-6, XP033577671.10.1109/RFIC.2006.1651114
High-Efficiency Doherty Power Ampliﬁers: Historical Aspect and Modem Trends. Grebennikov et al., “High-Efficiency Doherty Power Ampliﬁers: Historical Aspect and Modem Trends,” Proceedings of the IEEE. Dec. 2012; 100(12):3190-219.
Doherty Linear Power Ampliﬁers for Mobile Handset Applications. Proceedings of Asia-Paciﬁc Microwave Conference. Kim et al., “Doherty Linear Power Ampliﬁers for Mobile Handset Applications. Proceedings of Asia-Paciﬁc Microwave Conference,” Dec. 2006; 1885-94. Merrick B et al., “A wideband Sequential Power Ampliﬁer”, 2014 IEEE Mtt-S International Microwave Symposium (IMS2014), IEEE, (Jun. 1, 2014), doi:10.1109/MWSYM.2014.6848592, pp. 1-3, XP032615303.10.1109/MWSYM.2014.6848592
A100 W Multi-Band Four-Way Integrated Doherty Ampliﬁer. Moronval et al., “A100 W Multi-Band Four-Way Integrated Doherty Ampliﬁer,” IEEE MTT-S International Microwave Symposium (IMS) May 22, 2016: 1-3.
K-Band GaAs MMIC Doherty Power Ampliﬁer for Microwave Radio With Optimized Driver. Quaglia et al., “K-Band GaAs MMIC Doherty Power Ampliﬁer for Microwave Radio With Optimized Driver,” IEEE Transactions on Microwave Theory and Techmques. Nov. 2014; 62(11):2518-25. Roberts Michael James, “Understanding the 3 level Doherty”, 2016 11TH European Microwave Integrated Circuits Conference (EUMIC), European Microwave Association, (Oct. 3, 2016), doi:10.1109/EUMIC.2016.7777583, pp. 428-432.10.1109/EUMIC.2016.7777583
Fully integrated three-way LDMOS Doherty PAs for 1.8-2.2 GHZ dual-band and 2.6 GHz m-MIMO 5G applica- tions. Vigneau et al., “Fully integrated three-way LDMOS Doherty PAs for 1.8-2.2 GHZ dual-band and 2.6 GHz m-MIMO 5G applica- tions,” Published in International Journal of Microwave and Wire- less Technologies, Mar. 1, 2021. Wicks B et al., “A 60-GHz fully-integrated Doherty power ampliﬁer based on 0.13-um CMOS process,” Radio Frequency Integrated Circuits Symposium, 2008. RFIC 2008. IEEE, IEEE, Piscataway, NJ, USA, (Jun. 17, 2008), ISBN 978-1-4244-1808-4, pp. 69-72. Xia Jing et al., “Improved Three-Stage Doherty Ampliﬁer Design With Impedance Compensation in Load Combiner for Broadband Applications”, IEEE Transactions On Microwave Theory and Tech- niques, Plenum, USA, vol. 67, No. 2, doi:10.1109/TMTT.2018. 2884404, ISSN 0018-9480, (Feb. 1, 2019), pp. 778-786.10.1109/TMTT.2018
Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs. Yu et al., “Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs,” IEEE Radio Frequency Integrated Circuits Sym- posium (RFIC). Jun. 11, 2006; 153-6.
Design of an S-Band Two-Way Inverted Asymmetrical Doherty Power Ampliﬁer for Long Term Evolution Applications. Zhou et al., “Design of an S-Band Two-Way Inverted Asymmetrical Doherty Power Ampliﬁer for Long Term Evolution Applications,” Progress in Electromagnetics Research Letters. 2013; 39:73-80.

Cited non-patent literature · 16

A high-efficiency 100-W four-stage Doherty GaN HEMT power ampliﬁer module for WCDMA systems. Andrei Grebennikov, “A high-efficiency 100-W four-stage Doherty GaN HEMT power ampliﬁer module for WCDMA systems”, 2011 IEEE MTT-S International Microwave Symposium.
A Design Strategy for Bandwidth Enhance- ment in Three-Stage Doherty Power Ampliﬁer With Extended Dynamic Range. Barthwal Ayushi et al., “A Design Strategy for Bandwidth Enhance- ment in Three-Stage Doherty Power Ampliﬁer With Extended Dynamic Range”, IEEE Transactions on Microwave Theory and
A fully integrated Ku-band Doherty ampliﬁer MMIC. Techniques, Plenum, USA, vol. 66, No. 2, ISSN 0018-9480, Feb. 2018. C.F. Campbell, “A fully integrated Ku-band Doherty ampliﬁer MMIC”, IEEE Microwave and Guided Wave Letters, (Mar. 1, 1999), vol. 9, No. 3, doi: 10.1109/75.761678, ISSN 1051-8207, pp. 114-116.10.1109/75.761678
7 GHz MMIC GaN Doherty Power Ampliﬁer With 47% Efficiency at 7 dB Output Back-Off. Camarchia et al., “7 GHz MMIC GaN Doherty Power Ampliﬁer With 47% Efficiency at 7 dB Output Back-Off,” IEEE Microwave and Wireless Components Letters. Jan. 2013.
Reﬁne Biasing Networks for High PA Low Fre- quency Stability. Ceylan et al., “Reﬁne Biasing Networks for High PA Low Fre- quency Stability,” Microwave & RF, Apr. 17, 2018, pp. 1-6.
GaN HEMT Based Doherty Broadband Power Ampliﬁer. Cheng et al., “GaN HEMT Based Doherty Broadband Power Ampliﬁer,” Journal of Hangzhou Dianzi University (Natural Sci- ences), Mar. 15, 2017.
Frequency Analysis and Multiline Implementation of Compensated Impedance Inverter for Wideband Doherty High- Power Ampliﬁer Design. Cidronali et al., “Frequency Analysis and Multiline Implementation of Compensated Impedance Inverter for Wideband Doherty High- Power Ampliﬁer Design,” IEEE Transactions on Microwave Theory and Techniques. May 2016; 64(5):1359-72.
30.3% PAE HBT Doherty power ampliﬁer for 2.5-2.7 GHZ mobile WiMAX. Daehyun Kang et al., “30.3% PAE HBT Doherty power ampliﬁer for 2.5-2.7 GHZ mobile WiMAX,” Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International, IEEE, Piscataway, NJ,
Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs. USA, Piscataway, NJ, USA, (May 23, 2010), ISBN 978-1-4244- 6056-4, pp. 796-799. Daekyu Yu et al., “Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs”, Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE, IEEE, Piscataway, NJ, USA, (Jun. 11, 2006), doi:10.1109/RFIC.2006.1651114, ISBN 978-0-7803-9572-5, pp. 153-156. Daniel Popp et al., “High Power and High Bandwidth Digital Three-Way Doherty Power Ampliﬁer”, 2019 IEEE 20TH Wireless and Microwave Technology Conference (WAMICON), IEEE, (Apr. 8, 2019), doi: 10.1109/WAMICON.2019.8765455, pp. 1-6, XP033577671.10.1109/RFIC.2006.1651114
High-Efficiency Doherty Power Ampliﬁers: Historical Aspect and Modem Trends. Grebennikov et al., “High-Efficiency Doherty Power Ampliﬁers: Historical Aspect and Modem Trends,” Proceedings of the IEEE. Dec. 2012; 100(12):3190-219.
Doherty Linear Power Ampliﬁers for Mobile Handset Applications. Proceedings of Asia-Paciﬁc Microwave Conference. Kim et al., “Doherty Linear Power Ampliﬁers for Mobile Handset Applications. Proceedings of Asia-Paciﬁc Microwave Conference,” Dec. 2006; 1885-94. Merrick B et al., “A wideband Sequential Power Ampliﬁer”, 2014 IEEE Mtt-S International Microwave Symposium (IMS2014), IEEE, (Jun. 1, 2014), doi:10.1109/MWSYM.2014.6848592, pp. 1-3, XP032615303.10.1109/MWSYM.2014.6848592
A100 W Multi-Band Four-Way Integrated Doherty Ampliﬁer. Moronval et al., “A100 W Multi-Band Four-Way Integrated Doherty Ampliﬁer,” IEEE MTT-S International Microwave Symposium (IMS) May 22, 2016: 1-3.
K-Band GaAs MMIC Doherty Power Ampliﬁer for Microwave Radio With Optimized Driver. Quaglia et al., “K-Band GaAs MMIC Doherty Power Ampliﬁer for Microwave Radio With Optimized Driver,” IEEE Transactions on Microwave Theory and Techmques. Nov. 2014; 62(11):2518-25. Roberts Michael James, “Understanding the 3 level Doherty”, 2016 11TH European Microwave Integrated Circuits Conference (EUMIC), European Microwave Association, (Oct. 3, 2016), doi:10.1109/EUMIC.2016.7777583, pp. 428-432.10.1109/EUMIC.2016.7777583
Fully integrated three-way LDMOS Doherty PAs for 1.8-2.2 GHZ dual-band and 2.6 GHz m-MIMO 5G applica- tions. Vigneau et al., “Fully integrated three-way LDMOS Doherty PAs for 1.8-2.2 GHZ dual-band and 2.6 GHz m-MIMO 5G applica- tions,” Published in International Journal of Microwave and Wire- less Technologies, Mar. 1, 2021. Wicks B et al., “A 60-GHz fully-integrated Doherty power ampliﬁer based on 0.13-um CMOS process,” Radio Frequency Integrated Circuits Symposium, 2008. RFIC 2008. IEEE, IEEE, Piscataway, NJ, USA, (Jun. 17, 2008), ISBN 978-1-4244-1808-4, pp. 69-72. Xia Jing et al., “Improved Three-Stage Doherty Ampliﬁer Design With Impedance Compensation in Load Combiner for Broadband Applications”, IEEE Transactions On Microwave Theory and Tech- niques, Plenum, USA, vol. 67, No. 2, doi:10.1109/TMTT.2018. 2884404, ISSN 0018-9480, (Feb. 1, 2019), pp. 778-786.10.1109/TMTT.2018
Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs. Yu et al., “Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs,” IEEE Radio Frequency Integrated Circuits Sym- posium (RFIC). Jun. 11, 2006; 153-6.
Design of an S-Band Two-Way Inverted Asymmetrical Doherty Power Ampliﬁer for Long Term Evolution Applications. Zhou et al., “Design of an S-Band Two-Way Inverted Asymmetrical Doherty Power Ampliﬁer for Long Term Evolution Applications,” Progress in Electromagnetics Research Letters. 2013; 39:73-80.

Cited non-patent literature · 16

A high-efficiency 100-W four-stage Doherty GaN HEMT power ampliﬁer module for WCDMA systems. Andrei Grebennikov, “A high-efficiency 100-W four-stage Doherty GaN HEMT power ampliﬁer module for WCDMA systems”, 2011 IEEE MTT-S International Microwave Symposium.
A Design Strategy for Bandwidth Enhance- ment in Three-Stage Doherty Power Ampliﬁer With Extended Dynamic Range. Barthwal Ayushi et al., “A Design Strategy for Bandwidth Enhance- ment in Three-Stage Doherty Power Ampliﬁer With Extended Dynamic Range”, IEEE Transactions on Microwave Theory and
A fully integrated Ku-band Doherty ampliﬁer MMIC. Techniques, Plenum, USA, vol. 66, No. 2, ISSN 0018-9480, Feb. 2018. C.F. Campbell, “A fully integrated Ku-band Doherty ampliﬁer MMIC”, IEEE Microwave and Guided Wave Letters, (Mar. 1, 1999), vol. 9, No. 3, doi: 10.1109/75.761678, ISSN 1051-8207, pp. 114-116.10.1109/75.761678
7 GHz MMIC GaN Doherty Power Ampliﬁer With 47% Efficiency at 7 dB Output Back-Off. Camarchia et al., “7 GHz MMIC GaN Doherty Power Ampliﬁer With 47% Efficiency at 7 dB Output Back-Off,” IEEE Microwave and Wireless Components Letters. Jan. 2013.
Reﬁne Biasing Networks for High PA Low Fre- quency Stability. Ceylan et al., “Reﬁne Biasing Networks for High PA Low Fre- quency Stability,” Microwave & RF, Apr. 17, 2018, pp. 1-6.
GaN HEMT Based Doherty Broadband Power Ampliﬁer. Cheng et al., “GaN HEMT Based Doherty Broadband Power Ampliﬁer,” Journal of Hangzhou Dianzi University (Natural Sci- ences), Mar. 15, 2017.
Frequency Analysis and Multiline Implementation of Compensated Impedance Inverter for Wideband Doherty High- Power Ampliﬁer Design. Cidronali et al., “Frequency Analysis and Multiline Implementation of Compensated Impedance Inverter for Wideband Doherty High- Power Ampliﬁer Design,” IEEE Transactions on Microwave Theory and Techniques. May 2016; 64(5):1359-72.
30.3% PAE HBT Doherty power ampliﬁer for 2.5-2.7 GHZ mobile WiMAX. Daehyun Kang et al., “30.3% PAE HBT Doherty power ampliﬁer for 2.5-2.7 GHZ mobile WiMAX,” Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International, IEEE, Piscataway, NJ,
Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs. USA, Piscataway, NJ, USA, (May 23, 2010), ISBN 978-1-4244- 6056-4, pp. 796-799. Daekyu Yu et al., “Fully Integrated Doherty Power Ampliﬁers for 5 GHz Wireless-LANs”, Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE, IEEE, Piscataway, NJ, USA, (Jun. 11, 2006), doi:10.1109/RFIC.2006.1651114, ISBN 978-0-7803-9572-5, pp. 153-156. Daniel Popp et al., “High Power and High Bandwidth Digital Three-Way Doherty Power Ampliﬁer”, 2019 IEEE 20TH Wireless and Microwave Technology Conference (WAMICON), IEEE, (Apr. 8, 2019), doi: 10.1109/WAMICON.2019.8765455, pp. 1-6, XP033577671.10.1109/RFIC.2006.1651114
High-Efficiency Doherty Power Ampliﬁers: Historical Aspect and Modem Trends. Grebennikov et al., “High-Efficiency Doherty Power Ampliﬁers: Historical Aspect and Modem Trends,” Proceedings of the IEEE. Dec. 2012; 100(12):3190-219.
Doherty Linear Power Ampliﬁers for Mobile Handset Applications. Proceedings of Asia-Paciﬁc Microwave Conference. Kim et al., “Doherty Linear Power Ampliﬁers for Mobile Handset Applications. Proceedings of Asia-Paciﬁc Microwave Conference,” Dec. 2006; 1885-94. Merrick B et al., “A wideband Sequential Power Ampliﬁer”, 2014 IEEE Mtt-S International Microwave Symposium (IMS2014), IEEE, (Jun. 1, 2014), doi:10.1109/MWSYM.2014.6848592, pp. 1-3, XP032615303.10.1109/MWSYM.2014.6848592
A100 W Multi-Band Four-Way Integrated Doherty Ampliﬁer. Moronval et al., “A100 W Multi-Band Four-Way Integrated Doherty Ampliﬁer,” IEEE MTT-S International Microwave Symposium (IMS) May 22, 2016: 1-3.
K-Band GaAs MMIC Doherty Power Ampliﬁer for Microwave Radio With Optimized Driver. Quaglia et al., “K-Band GaAs MMIC Doherty Power Ampliﬁer for Microwave Radio With Optimized Driver,” IEEE Transactions on Microwave Theory and Techmques. Nov. 2014; 62(11):2518-25. Roberts Michael James, “Understanding the 3 level Doherty”, 2016 11TH European Microwave Integrated Circuits Conference (EUMIC), European Microwave Association, (Oct. 3, 2016), doi:10.1109/EUMIC.2016.7777583, pp. 428-432.10.1109/EUMIC.2016.7777583
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