The modern mobile communication systems requires high gain, large bandwidth and minimal size antenna’s that are capable of providing better performance over a wide range of frequency spectrum.This paper presents the design of microstrip rectangular patch antenna with center frequency at 1.176GHz for IRNSS application. The array of four by one (1x4) patch array microstrip rectangular antenna wit...

Millimeter-wave antennas have been developed for various applications such as broadband high-speed wireless communication systems and automotive radar systems. Microstrip antennas are more advantageous than other millimeter-wave antennas at the viewpoints of low profile and low cost [1]. On the other hand, transmission loss of microstrip line is significant problem in array feeding. So, microst...

This paper describes the development and performance of a wideband dual linear polarization microstrip antenna array used in the Danish high-resolution airborne multifrequency polarimetric synthetic aperture radar, EMISAR. The antenna was designed for an operating frequency of 1.25 GHz 50 MHz and was built as an array of 8 2 probe-fed stacked microstrip patches. The feeding network is construct...

Microstrip patch antennas are widely used in modern day communication devices due to their light weight, low cost and ease of fabrication. In this paper, we have designed a Microstrip Patch Antenna and array of patch for 2.45GHz for Wireless Local Area Network (WLAN) applications using antenna simulation software. The designed antenna consists of rectangular radiating patch on FR-4 (lossy) subs...

A one-dimensional, dual frequency, active retrodirective array is proposed for wireless power transfer applications. Microstrip circular patch antennas with four shorting pins are used as array elements to suppress surface waves. The proposed design eliminates undesired coupling between array elements due to surface waves present in conventional microstrip antenna arrays in order to improve arr...

A compact size, multiband 2x2 array of circular microstrip antenna has been proposed. The antenna array consists of Genetic Algorithm (GA)optimized, annular slotted circular microstrip antenna elements using probe feed. The spacing of elements has also been optimized using GA in the two directions. The performance of the antenna array has been studied with different shape parameters. The optimi...

Microstrip antennas and arrays have been widely used in military and commercial applications because of their ease of fabrication, low profile and low cost. In any microstrip array antenna, design of the feed network is always the most challenging task for which many different methods have been proposed. One method is to distribute the power to individual array elements by a coplanar microstrip...

A uniformly spaced comb taper slot antenna array is proposed for directional ultra-wideband (UWB) applications. The UWB array consists of four identical comb taper slot antennas, a mutistage with four-way microstrip UWB power divider, and four identical coaxial cable lines. A maximum gain of 15.5dBi within the band is obtained when the element separation is properly selected. The uniform spacin...

This paper presents a novel design of microstrip Yagi-Uda array. This proposed design has been simulated at frequency of 6.95 GHz. CST MW Studio software is used for Simulation of Yagi Uda array. Unlike conventional design of Yagi Uda array, In this design reflector, director and driven element of Yagi Uda array is designed by using microstrip patches of different dimensions with supporting die...

Because all microstrip antennas have to be matched to the standard generator impedance or load, the input impedance matching method for antenna is particularly important. In this paper a new methodology in achieving matching impedance of a planar microstrip antenna for wireless application is described. The method is based on embedding an Interdigital capacitor. The fine results obtained by usi...