PROPOSED A COMPACT MULTIBAND AND BROADBAND RECTANGULAR MICROSTRIP PATCH ANTENNA FOR C-BAND AND X-BAND.

In this communication two proposed antenna described one for broadband at 6.71445GHz to 11.9362GHz with finite ground plane. The?antenna?designed with 11.4051mm× 8.388 mm radiating copper?patch?with ground plane design with 21.0051mm x17. 988mm. And this Compact broadband?rectangular?shape?microstrip?patch?antenna?is designed and analyzed for the return loss?of?-20.08 dB is achieved at the resonant frequency?of?7.941GHz, From Antenna2-it is observed that, antenna for multiband at different frequency. The primary radiating elements are Simple Rectangular Microstrip Patch Antenna in upper side with probe feed and use finite ground plane are two parallel crossed printed slot for three different frequency applications which is smaller in size compared to other available?multiband?antennas. From the result, it is observed that, the return loss?of?-16.97 dB is achieved at the first resonant frequency?of?4.853GHz, -10.30dB at the second resonant frequency?of?8.382GHz, -10.73 dB at the third resonant frequency?of?9.265GHz, -17.38 dB at the fourth resonant frequency?of?10.15GHz and -12.37 dB at the fifth resonant frequency?of?11.91GHz. This broadband and multi-band highly efficient antenna?for?use in C-Band, and X-Band.