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Regular circular and compact semicircular patch antennas with a T-probe feeding

✍ Scribed by Y. X. Guo; K. M. Luk; K. F. Lee

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 184 KB
Volume: 31
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.1360

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✦ Synopsis

Abstract

Wideband T‐probe proximity‐fed regular circular and compact semicircular patch antennas are proposed in this paper. For the regular circular patch antenna, using a foam layer of thickness ∼0.13λ~0~ as a supported substrate, an impedance bandwidth of 35% and a gain of over 8.0 dBi have been obtained. For the compact semicircular patch antenna, an impedance bandwidth of 56% and a gain of over 5.4 dBi are achieved with the same substrate thickness. The far‐field patterns are stable across the passband. Experimental and computed results based on the finite‐difference time‐domain method are provided. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 31: 68–71, 2001.

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A dual-band shorted patch antenna proximity-fed by a combined L- and T-probe feed structure

✍ K. L. Lau; K. M. Luk; P. Li; K. F. Lee 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 124 KB

## Abstract Measured results of a dual‐band shorted patch antenna excited by a combined L‐ and T‐probe feed structure are presented. By using foam layers of thickness ∼0.12λ~1~ and ∼0.06λ~2~ to support the patches that are responsible for the lower and upper bands, impedance bandwidths (SWR ≤ 2) of