Conference Proceeding

Microstrip array antenna for multiband operation

Dept. of P.G. studies & Res. in Appl. Electron., Gulbarga Univ., Gulbarga
12/2008; DOI:10.1109/AMTA.2008.4763222 In proceeding of: Recent Advances in Microwave Theory and Applications, 2008. MICROWAVE 2008. International Conference on
Source: IEEE Xplore

ABSTRACT A novel design of corporate fed four element rectangular microstrip array antenna (FRMAA) has been proposed for triple band operation at X-band frequency. By increasing the number of array elements from four to eight, the triple band operation can be converted into dual bands. This overall impedance bandwidth is 1.16 times more than the impedance bandwidth of FRMAA with improved broadside radiation characteristics. The dual-frequency patch antennas may provide an alternative to large-bandwidth planar antennas, in applications in which large bandwidth is really needed for operating at two separate transmit-receiver bands. When the two operating frequencies are far apart, a dual-frequency patch structure can be conceived to avoid the use of separate antennas. The design concept of antennas is presented and experimental results are discussed.

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Keywords

array elements
 
broadside radiation characteristics
 
corporate
 
dual bands
 
dual-frequency patch antennas
 
dual-frequency patch structure
 
element rectangular microstrip array antenna
 
experimental results
 
FRMAA
 
impedance bandwidth
 
large bandwidth
 
large-bandwidth planar antennas
 
triple band operation