A broadband planar patch antenna fed by a short probe feed

This paper presents a novel design of a broadband probe-fed planar patch antenna. The proposed antenna has a thick air-layer substrate, and bandwidth enhancement is achieved by cutting a small portion of the ground plane and adding an inverted U-shaped ground plane to be close to the radiating patch...

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Bibliographic Details
Main Authors: Pey-Ling Teng, Chia-Luan Tang, Wong, Kin-Lu
Format: Conference Proceeding
Language:English
Subjects:
Antenna feeds
Bandwidth
Coaxial components
Directive antennas
Frequency
Impedance matching
Inductance
Patch antennas
Probes
Prototypes
Online Access:Request full text
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Summary:This paper presents a novel design of a broadband probe-fed planar patch antenna. The proposed antenna has a thick air-layer substrate, and bandwidth enhancement is achieved by cutting a small portion of the ground plane and adding an inverted U-shaped ground plane to be close to the radiating patch, and then feeding the antenna at the inverted U-shaped ground-plane portion using a 50-/spl Omega/ coax feed with a short probe pin. Prototypes have been successfully implemented, and experimental results show that an impedance bandwidth (1:1.5 VSWR) greater than 20% can be achieved for the proposed antenna. Radiation characteristics of a prototype suitable for application in a DCS cellular system (1710-1880 MHz) base station are also presented.
DOI:10.1109/APMC.2001.985359