Design and investigation of bandwidth enhanced microstrip patch antenna for applications in wireless communication

Abstract

A significant attention has been received by microstrip antenna in the area of newlinemicro and millimetre wave communication because of its many unique and smart newlineproperties such as having light weight, easy fabrication, low profile and appropriateness newlineof mass production. It is found apposite due to affinity with solid state devices as well as newlinediversified applications in wireless communication, satellite communication, radar, newlinemissile and other strategic defence equipments. However, the patch antenna is associated newlinewith some disadvantages of narrow bandwidth with single band, poor radiation and low newlinegain. newlineIn view of this, multi band microstrip antennas with different patch newlinegeometries have been investigated to minimize the shortcoming of the antenna. As well newlineas for getting better the bandwidth and gain of the patch antenna with different feed newlinetechniques and using slot loading, notching, coupling of patch also has been performed newlineand form the hardware. Designed antenna simulation is performed by means of IE3D newlinesimulation software tool and study the effect of slot loading, notching of patches, newlinecoupling of patches, step loading with right-angle band, shorting the ground to the patch newlinein simulation. With optimum simulated result, hardware of proposed/designed antenna newlinehas been formed. The testing has been performed with the help of analyzer kit of newlinedesigned or proposed antenna. A comparison has been performed between simulated newlineresult, theoretical result and experimental result. Such antennas can be given very newlinepromising results that establish it as a versatile antenna in the broad field of microwave newlinecommunity. newlineIn the operating chapter, the patch antenna has been described along with newlineadvantages, limitations and its relevance in many areas. The methods of analysis are also newlinepresented within the chapter. The entire investigations for the multi band microstrip newlinepatch antennas have been made employing circuit theory concept which is derived from newlinethe cavity model. Therefore, only cavity model is described in detail along with network newlinepresent