Design of a tunable sequential power amplifier

Publisher: John Wiley & Sons Inc

E-ISSN: 1098-2760|895-2477|12|2899-2901

ISSN: 0895-2477

Source: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Vol.895-2477, Iss.12, 2015-12, pp. : 2899-2901

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Abstract

ABSTRACTA tunable sequential power amplifier (SPA) is presented in this article. The proposed SPA, including a tunable coupler, a carrier amplifier, a peaking amplifier, and a combining coupler is fabricated on Isola I‐TeraMTRF boards with 3.45 dielectric constant and 0.508 mm substrate thickness. A conventional SPA (nontunable) is also designed for reference and performance comparison. Measurement results show that the tunable SPA provides about 2 dB higher gain and 1 dB higher power output comparing with the reference design. The measurement results match well with the analysis. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2899–2901, 2015