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A new wideband small size Crescent Slot Ellipse Shape Antenna (CSESA) with crescent slot is presented. A lossless material honeycomb dielectric of dielectric constant 1.11 is sandwiched between radiating patch and ground. The proposed antenna is excited by coaxial probe excitation technique. The main motivation for this work is to enhance the bandwidth of the Impedance. The simulation results verify...
A new circular polarization (CP) design for single-feed microstrip patch antennas is presented and studied. The proposed design is much simpler in construction compared to the traditional wide-band patch antenna. For the desired results, two slots are inserted into the patch antenna. Bandwidths as high as 10% are achieved with stable pattern characteristics, such as gain and cross polarization, within...
In this paper a new method of improving bandwidth is discussed. In microstrip antenna various types of fields are produced, out of these very few are responsible for producing far field radiations or useful radiations. In this paper methods are discussed to enhance the useful (which produce far field radiations) fields by making the size of ground plane smaller than radiating patch. This increases...
Dual polarized antennas are useful for both polarization diversity and frequency reuse applications. Isolation between the ports is a critical parameter and need to be considered in the design of dual polarized antennas. Parametric studies using IE3D have been presented to observe the relationship between height of layers and isolation. This paper also presents variation of isolation with spacing...
The purpose of this paper is to develop the microstrip patch designed for dual frequencies of 945 MHz and 1960 MHz. A new design of coplanar patches to get the dual band operation is proposed in this paper. It is a multiple patch approach for getting dual frequency operation with a single feed point. Some of the existing techniques like dual frequency PIFA; stacked patches for dual frequency and dual...
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