Balun-feed reconfigurable antenna applied for broadband switched beam arrays

Jia Fu Tsai, Jeen-Sheen Row

Research output: Contribution to journalArticle

Abstract

A design for switchable beam linear arrays is described. The radiating element of the array is a balun-feed reconfigurable antenna and its exciting phase is controlled with two switched-line phase shifters. By switching the feed points, the reconfigurable antenna can generate dual radiations with the same amplitude and 180° phase differences. Moreover, the delay lines of the two switched-line phase shifters, respectively provide phase shifts of 45° and 90°. Therefore, the array elements can be excited with the progressive phases of {0°, ±45°, ±90°, ±135°}, and each progressive phase is corresponding to one radiation beam. A 1 × 8 array prototype operating in the range from 1.7 to 2.7 GHz is constructed. Experimental results for the performances of the phased array are shown.

Original languageEnglish
Pages (from-to)748-751
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume58
Issue number4
DOIs
Publication statusPublished - 2016 Apr 1

Fingerprint

Phase shifters
Antenna feeders
antennas
Antennas
broadband
Radiation
Electric delay lines
Phase shift
phased arrays
linear arrays
delay lines
phase shift
prototypes
radiation

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "A design for switchable beam linear arrays is described. The radiating element of the array is a balun-feed reconfigurable antenna and its exciting phase is controlled with two switched-line phase shifters. By switching the feed points, the reconfigurable antenna can generate dual radiations with the same amplitude and 180° phase differences. Moreover, the delay lines of the two switched-line phase shifters, respectively provide phase shifts of 45° and 90°. Therefore, the array elements can be excited with the progressive phases of {0°, ±45°, ±90°, ±135°}, and each progressive phase is corresponding to one radiation beam. A 1 × 8 array prototype operating in the range from 1.7 to 2.7 GHz is constructed. Experimental results for the performances of the phased array are shown.",
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Balun-feed reconfigurable antenna applied for broadband switched beam arrays. / Tsai, Jia Fu; Row, Jeen-Sheen.

In: Microwave and Optical Technology Letters, Vol. 58, No. 4, 01.04.2016, p. 748-751.

Research output: Contribution to journalArticle

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