A compact wideband T/R switching circuit utilizing quadrature couplers and gate-and-drain-driven HPAs

Hiromitsu Uchida; Masatoshi Nii; Norio Takeuchi; Yoshihiro Tsukahara; Moriyasu Miyazaki; Yasushi Itoh

A compact wideband T/R switching circuit utilizing quadrature couplers and gate-and-drain-driven HPAs

Hiromitsu Uchida^*, Masatoshi Nii, Norio Takeuchi, Yoshihiro Tsukahara, Moriyasu Miyazaki, Yasushi Itoh

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

A novel compact T/R (Transmit/Receive) switching circuit, for wideband T/R modules has been proposed. It employs quadrature couplers and gate-and-drain-driven HPAs to remove circulators or T/R switches from a conventional T/R module, and T/R switching is made with controlling biasing conditions of the FETs in HPAs. Furthermore, an optimum biasing condition and design of output matching circuit of the HPA have been studied to reduce loss in RX-mode, and the validity of the method has been confirmed by measurements.

Original language	English
Pages (from-to)	2022-2028
Number of pages	7
Journal	IEICE Transactions on Electronics
Volume	E85-C
Issue number	12 SPEC.
Publication status	Published - 2002 Dec
Externally published	Yes

Keywords

Biasing conditions
FET
Matching circuit
Quadrature coupler
T/R switching

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Cite this

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title = "A compact wideband T/R switching circuit utilizing quadrature couplers and gate-and-drain-driven HPAs",

abstract = "A novel compact T/R (Transmit/Receive) switching circuit, for wideband T/R modules has been proposed. It employs quadrature couplers and gate-and-drain-driven HPAs to remove circulators or T/R switches from a conventional T/R module, and T/R switching is made with controlling biasing conditions of the FETs in HPAs. Furthermore, an optimum biasing condition and design of output matching circuit of the HPA have been studied to reduce loss in RX-mode, and the validity of the method has been confirmed by measurements.",

keywords = "Biasing conditions, FET, Matching circuit, Quadrature coupler, T/R switching",

author = "Hiromitsu Uchida and Masatoshi Nii and Norio Takeuchi and Yoshihiro Tsukahara and Moriyasu Miyazaki and Yasushi Itoh",

year = "2002",

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language = "English",

volume = "E85-C",

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T1 - A compact wideband T/R switching circuit utilizing quadrature couplers and gate-and-drain-driven HPAs

AU - Uchida, Hiromitsu

AU - Nii, Masatoshi

AU - Takeuchi, Norio

AU - Tsukahara, Yoshihiro

AU - Miyazaki, Moriyasu

AU - Itoh, Yasushi

PY - 2002/12

Y1 - 2002/12

N2 - A novel compact T/R (Transmit/Receive) switching circuit, for wideband T/R modules has been proposed. It employs quadrature couplers and gate-and-drain-driven HPAs to remove circulators or T/R switches from a conventional T/R module, and T/R switching is made with controlling biasing conditions of the FETs in HPAs. Furthermore, an optimum biasing condition and design of output matching circuit of the HPA have been studied to reduce loss in RX-mode, and the validity of the method has been confirmed by measurements.

AB - A novel compact T/R (Transmit/Receive) switching circuit, for wideband T/R modules has been proposed. It employs quadrature couplers and gate-and-drain-driven HPAs to remove circulators or T/R switches from a conventional T/R module, and T/R switching is made with controlling biasing conditions of the FETs in HPAs. Furthermore, an optimum biasing condition and design of output matching circuit of the HPA have been studied to reduce loss in RX-mode, and the validity of the method has been confirmed by measurements.

KW - Biasing conditions

KW - FET

KW - Matching circuit

KW - Quadrature coupler

KW - T/R switching

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SN - 0916-8524

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JO - IEICE Transactions on Electronics

JF - IEICE Transactions on Electronics

IS - 12 SPEC.

ER -

A compact wideband T/R switching circuit utilizing quadrature couplers and gate-and-drain-driven HPAs

Abstract

Keywords

ASJC Scopus subject areas

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