Novel configuration of 120 0 Sectoral Microstrip antenna is proposed. Compared with equivalent circular patch, 120 0 Sectoral patch has higher resonance frequency for the fundamental mode and it gives bandwidth of 1200 MHz (~59%). Resonant length formulation at fundamental mode in 120 0 Sectoral patch is proposed. Using the same, design of 120 0 Sectoral patch at resonance frequency of 1000 MHz is presented which yields more than 575 MHz (~ 50%) of bandwidth. This bandwidth is more than that obtained in circular patch operating in the same frequency range. Proposed 120 0 Sectoral patch gives broadside radiation pattern with peak co-polar gain of more than 9 dBi.
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