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IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 51, NO. 8, AUGUST 2003 1947 Design of Dual-Frequency Probe-Fed Microstrip
 

Summary: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 51, NO. 8, AUGUST 2003 1947
Design of Dual-Frequency Probe-Fed Microstrip
Antennas With Genetic Optimization Algorithm
Ozlem Ozgun, Selma Mutlu, M. I. Aksun, Senior Member, IEEE, and Lale Alatan, Member, IEEE
Abstract--Dual-frequency operation of antennas has become a
necessity for many applications in recent wireless communication
systems, such as GPS, GSM services operating at two different fre-
quency bands, and services of PCS and IMT-2000 applications. Al-
though there are various techniques to achieve dual-band opera-
tion from various types of microstrip antennas, there is no efficient
design tool that has been incorporated with a suitable optimiza-
tion algorithm. In this paper, the cavity-model based simulation
tool along with the genetic optimization algorithm is presented for
the design of dual-band microstrip antennas, using multiple slots
in the patch or multiple shorting strips between the patch and the
ground plane. Since this approach is based on the cavity model,
the multiport approach is efficiently employed to analyze the ef-
fects of the slots and shorting strips on the input impedance. Then,
the optimization of the positions of slots and shorting strips is per-
formed via a genetic optimization algorithm, to achieve an accept-

  

Source: Aksun, M. Irsadi - Electrical and Electronics Engineering, Koc University

 

Collections: Engineering