Design and Analysis of Circular Ring Microstrip Antenna
نویسندگان
چکیده
Like many forms of microstrip patches, the annular ring has received considerable attention. When operated in its fundamental (TM) mode, this printed antenna is smaller than its rectangular or circular counterparts. The annular ring may also be somewhat broadband in nature when operated near the TM resonance [5]. It has been shown that the structure is a good resonator (with very little radiation) for TM1m modes (m odd), and a good radiator for TM1m modes (m even) [8]. A circular ring microstrip antenna is designed for TM11 mode at the resonance frequency of 2 GHz, and analyzed for different parameters such as return loss, VSWR, input impedance and bandwidth. Analysis shows that the size of designed antenna is small at the cost of low bandwidth.
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