IMS2020 Oral PPT TuF4-293-ZO21 Soack Yoon rev2 7x) ! =2 ! 6sdwldo 5) srzhu frpelqhu 6rolg vwdwh +3$...
Transcript of IMS2020 Oral PPT TuF4-293-ZO21 Soack Yoon rev2 7x) ! =2 ! 6sdwldo 5) srzhu frpelqhu 6rolg vwdwh +3$...
![Page 1: IMS2020 Oral PPT TuF4-293-ZO21 Soack Yoon rev2 7x) ! =2 ! 6sdwldo 5) srzhu frpelqhu 6rolg vwdwh +3$ 00,&v %urdgedqg frpelqhu ±7dshuhg frd[ldo wudqviruphu ihhg ±1 zd\ dqwlsrgdo ilqolqh](https://reader034.fdocuments.net/reader034/viewer/2022042408/5f2385663afda6638a076f1c/html5/thumbnails/1.jpg)
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High Linear & Effective Power Spatium Combiner Amplifier with GaN HPA MMIC
at Millimeter Wavelength FrequencyS. Yoon1, J. Kitt1, D. Murdock1, E. Jackson1,
M. Roberg2, G. Hegazi1 and P. Courtney1
1Qorvo Inc. IDP, Newbury Park CA., USA2Qorvo Inc. IDP, Richardson TX., USA
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• Introduction: Qorvo Spatium
• Motivation of Work
• 16-Way Spatium Combiner RF Amplifier (16W-SCRA):–Design Approach
–16W-SCRA Prediction & Performance• Small Signal Gain (SSG)
• Saturated Power (Psat)
• Linear Power (Plin)
• Summary
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Outline
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Spatial RF power combiner
• Solid state HPA MMICs
• Broadband combiner:–Tapered coaxial transformer feed–N-way antipodal finline antenna
splitter & combiner
• Applications: high power broadband RF communication, test measurement, radar, military EW etc..
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Introduction: Qorvo Spatium™
Input Output
N-way Splitter N-way Combiner
Solid State HPA MMICs
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Qorvo Spatium™ Products (with GaN HPA)– 2 to 18GHz (16-Way)
– 6 to 18GHz (16-Way)
– 25 to 40GHz (16-Way)
– 4 to 40GHz
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Introduction: Qorvo Spatium™-Cont.
Table: SpatiumTM power combiner vs. TWTA
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Highly reliable compact low-cost RF power amplifier for satellite communication (uplinks)
• Solid State GaN MMIC
• Frequency: 27 ~31GHz
• Saturated Power (Psat): >100Watts (50dBm)
• Linear Power (Plin): >60Watts (48dBm)
• Low Voltage Operation: 20V~22V
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Motivation
This work presents performance of Qorvo 16-Way Spatium Combiner RF Amplifier (16W-SCRA)
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• Frequency: 27 to 31GHz
• Selection of GaN HPA MMIC: – QPA2211D (Psat ~12Watts at 25 oC)
• Selection of combiner system: – 16-Way Spatium (Psat ≥140W at 25 oC)
• Form factor (with Clamp)– 3.25in x 2.91in x 3.93in (7.3 lbs)
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16W-SCRA Design & Performance
16W-SCRA System Block Diagram
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• Predicted and measured passive performance (Back to Back)
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16W-SCRA Design & Performance
Dotted lines: HFSS simulation / Solid lines: Measurement 3D model Spatium (wo Clamp)
J1 J2
Top view passive antipodal antenna
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• SSG: Predicted and measured
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16W-SCRA Design & Performance-Cont.
Dotted lines: Prediction / Solid lines: Measurement
16W-SCRA (QPB2731) on Testing Plate
Vd=22V/Idq=4.6Amp
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• Psat: Predicted and measured
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16W-SCRA Design & Performance-Cont.
Vd=22V and Ids<31Amp(at+71oC)
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• Psat & PAE in various temperatures
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16W-SCRA Design & Performance-Cont.
Vd=22V & Pin=39dBm
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• Plin in various temperatures
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16W-SCRA Design & Performance-Cont.
Linearity test: -30dBc at 1 MHz offset for 1MSPS OQPSK (a=0.35) MIL-STD-188-164b
Typical OQPSK modulation in 16W-SCRA linear power test: at +25oC @29GHz
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• 16W-SCRA for 27GHz to 31GHz (Satcom uplink applications)–16W-SCRA (QPB2731) only
–16W-SCRA with Integrated Bias Card (QPB2731N)
• Psat (Pin=39dBm):>50dBm at ≤+55oC base temperature
• PAE (Pin=39dBm): >14.5%
• Gain Flatness (Pin=39dBm): <1dB
• Linear power: >48dBm at ≤+71oC base temperature
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Summary
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Contact Information for the speaker is provided below for any follow-up questions:
–Soack Yoon: [email protected]
–John Kitt: [email protected]
–Michael Roberg: [email protected]
–Patrick Courtney: [email protected]
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Contact Information for Further Questions
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• 16W-SCRA Thermal simulation
–Clamp is modeled with bulk loaded MMICS• 36Watts loaded on each MMIC location (Total 576Watts in 16W-SCRA)
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16W-SCRA Design & Performance-Cont.
Backup slide