DC-20-GHz compact SPQT switch for butler matrix switched beam smart antenna system

Jeng-Han Tsai, Hung Da Shih

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A DC-20-GHz broadband and compact single-pole-quadruple-throw (SPQT) switch for Butler matrix switched beam smart antenna system application has been designed and fabricated on 0.15-μm GaAs pHEMT process. By adopting inductive high impedance transmission lines in series-shunt switch topology, the SPQT switch demonstrates an insertion loss of 1.25-3.53 dB from DC to 20 GHz, and the isolation is higher than 22 dB with a compact chip size of 1.5 mm 2. The measured output 1 dB compression point (OP 1 dB) is 16 dBm at 12 GHz.

Original languageEnglish
Pages (from-to)2023-2026
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume54
Issue number9
DOIs
Publication statusPublished - 2012 Sep 1

Fingerprint

Butler matrix
Smart antennas
Poles
poles
switches
antennas
direct current
Switches
matrices
shunts
Insertion losses
insertion loss
transmission lines
Electric lines
isolation
topology
chips
Topology
impedance
broadband

Keywords

  • monolithic microwave integrated circuit
  • single-pole-quadruple-throw
  • switch

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

DC-20-GHz compact SPQT switch for butler matrix switched beam smart antenna system. / Tsai, Jeng-Han; Shih, Hung Da.

In: Microwave and Optical Technology Letters, Vol. 54, No. 9, 01.09.2012, p. 2023-2026.

Research output: Contribution to journalArticle

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