The designs of dual band microstrip patch antennas because of their multi-functionality are becoming popular. Satellite mobile and fixed communication for Space Research, Met. Satellite, Radiolocation, Meteorological aids, aeronautical Radio navigation data and analysis has got lot of attentions in the recent years. Achieving selected multiband operation requires precise bandwidth and mutually ...

A microstrip patch antenna with slots is designed and simulated for wireless portable devices. The proposed antenna has a simple structure with a common size of 70 X 20 mm in a 0.8mm thick FR4 substrate with a dielectric constant (er) 4.4. With the proposed antenna structure the two wide operating frequency bands of 1.1 and 2.1 GHz can be achieved at 6.18dB gain can be used for GSM and UMTS net...

In this paper, a coplanar inverted-F antenna with reconfigurable ground slot using PIN diode switches is proposed for GSM1800, DCS1800, PCS1900, UMTS2100, WLAN2450, WiMAX2500, and LTE2300 services. Initially, the antenna radiator is designed at quarter wavelength of 1.8 GHz. A ground slot is then introduced and loaded with two pair of PIN diode switches to create a new tunable magnetic resonato...

In the days of modern communication, the compact size, low profile antenna with the directional capability is demanded for the wireless communication applications. To fulfill this requirement two new structures of antennas are designed. Two different geometries of microstrip antenna for triple band and Tetra band operation have been investigated in this paper with a new concept of T-slot in the...

Ultra−WideBand (UWB) technology was approved by the Federal Communications Commission (FCC) in February 2002 (FCC, 2002). According to the FCC regulations, the frequency band from 3.1 to 10.6 GHz can be used for short−range and high speed wireless communications systems. This recent allocation of a very wide spectrum of frequencies for the devices uses, with effective isotropic radiated power (...