Wideband slot antenna with a novel microstrip feed

Abstract

A novel slot antenna of large bandwidth and small size, which is fed by a fan‐shaped microstrip feed with a straight stub, is introduced. The effect of the fan feed on the impedance characteristics is investigated theoretically and experimentally. Good agreement between the theoretical and experimental results is obtained. Its measured VSWR ≤ 2 bandwidth reaches approximately 114%, covering 1.55–5.66 GHz. The measured standing‐wave ratio curves and radiation patterns of the antenna at f = 2 GHz and at f = 5 GHz are both presented. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 275–278, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20964

Ultra-Wideband Antenna and Design

“…The two slot antennas achieve the impedance bandwidth ratios of 2.8:1 (1.7~ 4.9 GHz) and 3.5:1 (1.7~ 6.0 GHz), respectively. Later, Yao et al [42] proposed a fanshaped microstrip stub together with a strip, which contributes to a little wider with the bandwidth ratio of 3.6:1 (0.5~ 5.7 GHz). A rectangular slot with a rectangular tuning stub was also studied [43], but with the bandwidth ratio of 1.8:1.…”

Circular Slotted Elliptical Patch Antenna With Elliptical Notch in Ground

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New design of a CPW‐fed ultrawideband slot antenna

“…In February 2002, the Federal Communications Commission (FCC) in the United States released unlicensed frequency band of 3.1-10.6 GHz for commercial communication applications [1]. So far, ultra wide band (UWB) technique had become the first candidate of short-range high-speed wireless communication systems.…”

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