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6-18 GHz Watt-Level Switchless Dual-Band PA MMIC using Coupled-Line-Based Diplexer
Cited 3 time in
Web of Science
Cited 6 time in Scopus
- Authors
- Issue Date
- 2018-06
- Publisher
- IEEE
- Citation
- 2018 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM - IMS, pp.1352-1355
- Abstract
- In this work, a watt-level switchless dual-band power amplifier (PA) has been developed for multi-octave operation. To switchless dual-band operation, we proposed a new coupled-line based diplexer structure at the inter-stage and output-stage of the PA. Detailed analysis is performed to show the operation principle of the proposed diplexer. The designed dual-band PA is fabricated with commercial 0.25-mu m GaN HEMT process. Fabricated PA shows over 15 dB small-signal gain at 5-11 GHz in low-band mode and 9-18 GHz in high-band mode. The measured average output power and power-added efficiency (PAE) is 35 dBm, 23% at lowband mode and 37 dBm, 26% at high-band mode.
- ISSN
- 0149-645X
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