On the design of compact broadband gap-coupled microstrip patch antenna with PBG

Author

Kumar, Raj ; Deshmukh, V.A.

Author_Institution

Fac. of Electron. Engg., Inst. of Armament Technol., Pune, India

Volume

2

fYear

2005

fDate

4-7 Dec. 2005

Abstract

This paper presents the design of compact broadband gap-coupled microstrip antenna with photonic band gap. The single patch microstrip antenna and gap-coupled microstrip antenna have been designed and fabricated on ε_F = 2.2 with 1.588 mm substrate thickness. The gap-coupled microstrip antenna consists the number of parasitic elements which are gap-coupled to driven patch. The measured center frequency of the gap-coupled and patch antenna is 2.568 GHz and 2.483 GHz respectively. The impedance bandwidth of gap-coupled antenna has been observed 4 times greater than microstrip patch antenna at VSWR 2:1. The photonic band gap (PBG) has been applied to suppress the surface wave propagating on substrate which improves the radiation pattern and bandwidth.

Keywords

antenna radiation patterns; broadband antennas; microstrip antennas; microwave antennas; photonic band gap; 1.588 mm; 2.483 GHz; 2.568 GHz; antenna radiation pattern; compact broadband antenna; gap-coupled antenna; microstrip patch antenna; photonic band; surface wave propagation; Antenna measurements; Antennas and propagation; Bandwidth; Broadband antennas; Frequency measurement; Microstrip antennas; Patch antennas; Photonic band gap; Surface impedance; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings

Print_ISBN

0-7803-9433-X

Type

conf

DOI

10.1109/APMC.2005.1606390

Filename

1606390