Multi-band Dual Polarized Variations of Modified Circular Microstrip Antennas

Compact and Hexaband Rectangular Microstrip Patch Antenna for Wireless Applications

“…Mobile telephony systems for example, allow portable devices compliant with GSM900/DCS1800/ UMTS2000 technologies and the same devices will also link users to WLAN networks based on 802.11 standards (2.4/3.6/4.9/5/5.9GHz) specifications. Hence, it is of great interest to develop patch antenna with multiple resonances [4][5][6][7].Many researchers have made huge efforts to design slot/slit based antennas on the radiating patch and ground plane, which can be used for multiband operations [8][9][10][11][12][13][14].Reconfigurable antennas are still attracting many researchers for designing multiband antennas [15][16][17].Metamaterials are the promising new candidates for designing multiband antennas [18][19][20].Fractals have been investigated for multiband antenna operations [21,22].Stacking of antennas for multiband operation has also been investigated [23,24].…”