volume | PIER Journals

Abstract

This paper presents a design and evaluation for a miniaturized ultra-wideband (UWB) printed monopole antenna. The design integrates a UWB printed bell-shaped monopole antenna with a short stub. This antenna improves the matched impedance in the lower frequency band by using the short stub structure. The proposed antenna is formed on a low-cost FR-4 dielectric substrate with the size: 28 x 20 x 1.6 mm³. The designed antenna operates with impedance bandwidth of 3.1~4.0 GHz. The omnidirectional radiation patterns are obtained over the frequency range. Calculation and measurement show that this antenna acquires broadband characteristics covering the required frequency band of UWB system. The proposed antenna is assumed for applying to UWB radar, etc.

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Dr. Nobuyasu Takemura

Dr. Syunta Ichikawa