Title :
Capacitive feeding for slotted microstrip patch
Author :
Musale, Piyush ; Khobragade, Sanjay V. ; Anitha, V.R.
Author_Institution :
Dr. Babasaheb Ambedkar Technol. Univ., Lonere, India
Abstract :
A Microstrip patch antenna having slotted sides with small capacitive feed has studied and discussed here. Slots on the proposed patch can be used to increase the bandwidth of antenna. It has observed that VSWR bandwidth nearly 45% can be easily achieved with the novel patch. A constant radiation pattern with improved bandwidth, for an operating frequency of 4.8 GHz can be easily achieved. Configuration of an antenna is easy to design. A very small feed strip is placed very close to the presented novel patch on the substrate above the ground plane. The given patch is act as radiating patch while feed strip couples the energy to radiating patch by capacitive mean. The model of antenna incorporates the capacitive feed strip which is fed by a coaxial probe by using equivalent approach. Effect of various parameters such as air gap between the substrate and the ground plane, probe diameter, the distance between the radiator patch and feed strip, and dimensions of the feed strip on the performance of the antenna has studied and there results has discussed here. A proposed patch can be used for various application in L-, S-, C- or X-band.
Keywords :
antenna feeds; antenna radiation patterns; microstrip antennas; microwave antennas; slot antennas; C-band; L-band; S-band; X-band; capacitive feeding; coaxial probe; constant radiation pattern; equivalent approach; feed strip; frequency 4.8 GHz; microstrip patch antenna; radiating patch; radiator patch; slotted microstrip patch; slotted sides; Antenna feeds; Bandwidth; Broadband antennas; Microstrip; Microstrip antennas; Probes;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050300
