A Miniaturized CPW-Fed Antipodal Vivaldi Antenna With Enhanced Radiation Performance for Wideband Applications

A miniaturized coplanar waveguide (CPW)-fed antipodal Vivaldi antenna (AVA) is presented in this letter. Elliptically shaped strip conductors are used to lower the antenna operating frequency. With two pairs of tapered slots and circularly shaped loads, the radiation performance in lower operating b...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2016-01, Vol.15, p.16-19
Main Authors: Wang, Zedong, Yin, Yingzeng, Wu, Jianjun, Lian, Ruina
Format: Article
Language:English
Subjects:
Antenna measurements
Antenna radiation patterns
Antipodal vivaldi antenna
coplanar waveguide (CPW)-fed
Coplanar waveguides
Feeds
miniaturized
radiation pattern
Vivaldi antennas
wideband
Wireless communication
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Summary:A miniaturized coplanar waveguide (CPW)-fed antipodal Vivaldi antenna (AVA) is presented in this letter. Elliptically shaped strip conductors are used to lower the antenna operating frequency. With two pairs of tapered slots and circularly shaped loads, the radiation performance in lower operating band can be greatly enhanced. The fabricated prototype of this proposed antenna with a size of 90 ×93.5 ×0.8 mm 3 was measured to confirm the simulated results. The wide measured impedance band from 1.32 GHz to more than 17 GHz for can be obtained. Meanwhile, the good measured radiation patterns with gain 3.5- 9.3 dBi in end-fire direction achieve in the whole measured working band.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2015.2425735