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6-18 GHz Watt-Level Switchless Dual-Band PA MMIC using Coupled- Line-Based Diplexer
- Issue Date
- Jun-2018
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- broadband amplifier; diplexer; dual-band PA; GaN MMIC; reactively matched PA; switchless
- Citation
- IEEE MTT-S International Microwave Symposium Digest, v.2018-June, pp.1352 - 1355
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE MTT-S International Microwave Symposium Digest
- Volume
- 2018-June
- Start Page
- 1352
- End Page
- 1355
- ISSN
- 0149-645X
- 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-μm 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 low-band mode and 37 dBm, 26% at high-band mode. © 2018 IEEE.
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Related Researcher
- KIM, JUNG HYUN
- ERICA 공학대학 (SCHOOL OF ELECTRICAL ENGINEERING)