Title :
Wideband Planar Patch Antenna Array on Cylindrical Surface
Author :
Abbaspour, Maryam ; Hassani, Hamid R.
Author_Institution :
Electr. & Electron. Eng. Dept., Shahed Univ., Tehran, Iran
fDate :
7/1/1905 12:00:00 AM
Abstract :
The analysis of a capacitively fed wideband planar patch antenna array mounted on a cylindrical surface is presented. The antenna element used is in the shape of an octagon in which slots are placed on three of its sides. The elements are each fed by a small rectangular patch connected to a coaxial probe. On a cylinder of radius 100 mm, the single element is able to achieve an impedance bandwidth from 0.55 to 2.65 GHz, which is 131% of center frequency. When placed in an array environment, the bandwidth reduces slightly to 0.572.6 GHz, i.e., 128%. Simulation results, via two software packages, including S parameters, radiation patterns, and gain of the single element as well as those of the array are provided. A single- and a double-element antenna fabricated are tested, and results are compared with those of simulations. This antenna structure provides stable radiation patterns across the entire pass-band.
Keywords :
S-parameters; UHF antennas; antenna feeds; antenna radiation patterns; broadband antennas; microstrip antenna arrays; planar antenna arrays; S parameters; capacitive feed; coaxial probe; cylindrical surface; double-element antenna; radiation patterns; rectangular patch; single-element antenna; software packages; wideband planar patch antenna array; Capacitively fed; cylindrical surface; planar patch antenna; wideband array;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2009.2014889