Desktop Shaped Broadband Microstrip Patch Antennas for Wireless Communications

Abstract

Abstract-This paper presents a comparative study of rectangular base desktop shaped broadband patch antenna (Antenna1) and triangular base desktop shaped broadband patch antenna (Antenna2). Apart from base dimensions all parameters of both antennas are constant. The broadband characteristics are achieved by introducing two parasitic ground planes and notches are etched on the radiating patch. Both antennas are simulated, fabricated and tested for obtaining the desired performance. The designed Antenna1 shows bandwidth of 39.97% (4.95 GHz to 7.42 GHz) whereas an improved bandwidth of 49.0% (4.53 GHz to 7.47 GHz) is achieved through Antenna2. Further, gain and radiation pattern of the two antennas are compared and discussed. The effect of inclination angle 'α' on Antenna2 characteristics in obtaining the improved bandwidth is also studied. The proposed antennas are simulated, and results are verified experimentally.

An Investigation of Stepped Open Slot Antenna With Circular Tuning Stub

“…It also alters the effective capacitance and inductance of the antenna which directly affects the phase velocity (v p = 1/ √ LC) of the resonating frequency [10][11][12]. Loading of the slot on the ground plane and patch provides new edges for fringing and also produces new resonating frequencies [13]. The impedance bandwidth of the open slot antenna can be modified by the following methods 1) By introducing notches on the circumference of the open slot which changes the resonant path length [7], 2) By cutting the steps on the open slot [14] which changes the mutual coupling between ground plane and radiating element, 3) By tapering the slot [15,16].…”

Wide‐bandwidth multifrequency circularly polarized monopole antenna for wireless communication applications

“… have been concentrated on multiband configurations, Refs. have tried to enhance the bandwidth and Refs. emphasize on circular polarization (CP) antennas.…”

“…So far numerous configurations have been reported in the domain of multiband operations. [1][2][3][4][5][6][7][8][9][10] Similarly, for bandwidth enhancement, many approaches have been reported by the researchers such as annular ring encircled by a rhombus strip, 11 desktop shaped microstrip patch, 12 U-shaped slot patch antenna, 13 E-shaped microstrip patch, 14 Y-shaped patch antenna, 15 U-shaped patch, 16 wide slot with parasitic center patch, 17 and curved slot. 18 On the other hand, circularly polarized [19][20][21][22][23][24][25][26][27][28] antenna in wireless communication system is another major application which minimized the effect of multipath reflection.…”

Very Compact Open-Slot Antenna for Wireless Communication Systems

“…Several dual band antennas for WLAN applications are reported [7][8][9][10]. In [11], a desktop shaped and triangular base desktop shaped broadband patch antennas are designed for wireless communication applications. However, the large physical size and the complex geometry are considered the main drawbacks of all these designs.…”