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Potential of Coplanar X-band GaN-MMIC Power Amplifiers
-
Erhan Ersoy
,
Serguei Chevtchenko
Published/Copyright:
August 20, 2014
Abstract
While the vast majority of GaN X-band PAs is realized as microstrip circuits, this paper reports design, fabrication and measurement of a coplanar version. The amplifier is processed using the FBH 4-inch GaN-on-SiC technology with 0.25 µm-gate GaN HEMTs. The two-stage power amplifier circuit delivers more than 12 W cw output power at 10 GHz, with a large-signal gain of 20 dB and a final stage drain efficiency of 45%. Benchmarking shows that these are best-in-class values for a coplanar X-band MMIC, which come very close to the state-of-the-art microstrip counterparts.
Received: 2013-9-30
Published Online: 2014-8-20
Published in Print: 2014-9-30
©2014 by Walter de Gruyter Berlin/Boston
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Articles in the same Issue
- Frontmatter
- Laudatio Prof. Groll zum 90. Geburtstag
- Nachruf Prof. Dr.-Ing. Heinz Chaloupka
- Reference Plane Transformation of Continuous Mode Terminations for Broadband Power Amplifiers
- Potential of Coplanar X-band GaN-MMIC Power Amplifiers
- High Directivity Microstrip Coupler with Asymmetric Structure
- Three-Pole Tunable Bandpass Filters With Constant Fractional Bandwidth Using Mixed Comb-line Resonators
- UWB Band-notched Adjustable Antenna Using Concentric Split-ring Slots Structure
- Evaluation of Cathode Heater Assembly for 42 GHz, 200 kW Gyrotron
- Optical Solitons in Magneto-optic Waveguides with Spatio-temporal Dispersion
- Outage Analysis of Dual-hop Cognitive Networks with Relay Selection over Nakagami-m Fading Environment
- A Novel Nonlinear Companding Transform for PAPR Reduction in Lattice-OFDM System
- On the First and the Second Order Statistics of the Capacity of κ-μ Fading Channels
- On the Performance of the Golden Code in the Presence of Channel Estimation Error in Correlated MIMO Rayleigh Fading Channels
- Evaluations of SSC Diversity Receiver over EGK Fading Channels
- New Tone Reservation Technique for Peak to Average Power Ratio Reduction
Articles in the same Issue
- Frontmatter
- Laudatio Prof. Groll zum 90. Geburtstag
- Nachruf Prof. Dr.-Ing. Heinz Chaloupka
- Reference Plane Transformation of Continuous Mode Terminations for Broadband Power Amplifiers
- Potential of Coplanar X-band GaN-MMIC Power Amplifiers
- High Directivity Microstrip Coupler with Asymmetric Structure
- Three-Pole Tunable Bandpass Filters With Constant Fractional Bandwidth Using Mixed Comb-line Resonators
- UWB Band-notched Adjustable Antenna Using Concentric Split-ring Slots Structure
- Evaluation of Cathode Heater Assembly for 42 GHz, 200 kW Gyrotron
- Optical Solitons in Magneto-optic Waveguides with Spatio-temporal Dispersion
- Outage Analysis of Dual-hop Cognitive Networks with Relay Selection over Nakagami-m Fading Environment
- A Novel Nonlinear Companding Transform for PAPR Reduction in Lattice-OFDM System
- On the First and the Second Order Statistics of the Capacity of κ-μ Fading Channels
- On the Performance of the Golden Code in the Presence of Channel Estimation Error in Correlated MIMO Rayleigh Fading Channels
- Evaluations of SSC Diversity Receiver over EGK Fading Channels
- New Tone Reservation Technique for Peak to Average Power Ratio Reduction
