Review Papers for Circular Microstrip Patch Antenna

In this review paper a design of an performance analysis of FR-4 substrate for high frequency microstrip antenna and inset-fed dual frequency circular microstrip antenna rectangular slot for application in wireless communication and parasitically loaded CPW fed monopole antenna for broadband operation. The circular microstrip antenna resonates at 1.58 GHz and 2.43 GHz, which enables it’s usage in the wireless communication domain such as in Wireless Local Area Network (WLAN).By varying the lengths of the rectangular slot, the proposed antenna can provide a tunable frequency ratio of 1.50 to 1.62 for the two operating frequency band. The performance of a low-profile coplanar waveguide (CPW)-fed monopole antenna comprising of a straight strip, a parasitic circular-hat patch, and a slotted CPW ground for broadband operation is presented. A measured dual-frequency operation with a broad impedance bandwidth(10 dB return loss) of 77% from 3.4–7.62 GHz, covering the required bandwidths of the lower operating band of the Japan’s ultrawideband (UWB), the 3.5/5.5 GHz WiMAX, and the 5.2/5.8 GHz WLAN standards,has finally been explored. Also, a stable monopole-like radiation pattern and an average antenna