DocumentCode :
1487799
Title :
PSO/FDTD Optimization Technique for Designing UWB In-Phase Power Divider for Linear Array Antenna Application
Author :
Dadgarpour, Abdolmehdi ; Dadashzadeh, Gholamreza ; Naser-Moghadasi, Mohammad ; Jolani, Farid ; Virdee, Bal Singh
Author_Institution :
Electr. Eng. Dept., Islamic Azad Univ., Tehran, Iran
Volume :
9
fYear :
2010
fDate :
7/2/1905 12:00:00 AM
Firstpage :
424
Lastpage :
427
Abstract :
This letter presents the design of a compact planar in-phase power divider with ultrawideband (UWB) performance. The device consists of three T-shaped microstrip lines arranged in parallel to each other on one side of the dielectric substrate that are electromagnetically coupled with an H-shaped slot etched on its ground plane. Particle swarm optimization (PSO) and the finite-difference time domain (FDTD) are combined to achieve the optimal power divider design for a given specification. The measured results show the transition of the signal between the T-shaped microstrip line and the ground-plane slot divides power equally, with relatively low insertion loss, good return loss, high stability of phase, and high isolation between the two output ports across the UWB frequency band defined between 3.1-10.6 GHz. The power divider is compact in size, occupying an area of 15 × 32 mm2. These features make it suitable for linear array antennas.
Keywords :
finite difference time-domain analysis; linear antenna arrays; microstrip components; particle swarm optimisation; power dividers; slot antenna arrays; FDTD; H-shaped slot; PSO; T-shaped microstrip line; compact planar UWB in-phase power divider; finite difference time domain; linear array antenna; particle swarm optimization; Microstrip; power divider; ultrawideband (UWB);
fLanguage :
English
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
Publisher :
ieee
ISSN :
1536-1225
Type :
jour
DOI :
10.1109/LAWP.2010.2049977
Filename :
5462912
Link To Document :
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