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In this study, A multi band and dual band antenna using slot stepped-impedance resonators(SIR) and coplanar waveguide (CPW) feeding have been investigated. All of the proposed antennas are fabricated on 1-mm FR4 substrates with a dielectric constant of 4.4 and a loss tangent of 0.02. In comparison to the conventional uniform — impedance resonator (UIR), the SIR shows a better control over spurious...
Series-fed array of square patches designed at 10 GHz, with three different configurations has been analyzed for sidelobe level and cross-polarization characteristics. A series-fed 8×2 planar array is analyzed to provide a sidelobe level of − 24.2dB and cross-polarization level of −21.8dB. The second configuration; a 2-line series array of 8 elements oriented back to back and fed with 180° out of...
A simple configuration that can be used to achieve broad band characteristics is the biconical antenna formed by two cones. In this paper the biconical dipole is modeled for examining its general characteristics. The biconical dipole with cone angle 90 degrees and its open wire structure equivalent are modeled by using WIPL-D program. The Gain and Radiation patterns are presented. The characteristics...
In this paper we have investigated printed monopole antennas, which is basically printed microstrip antenna with etched ground plane for UWB applications. In particular we have simulated two types of UWB printed monopole antennas: circular patch and Compact Miniaturized Semi-Circular patch UWB monopole antennas and in detail investigation was presented on size miniaturization in order to achieve very...
In this paper we have investigated printed monopole antennas, which is basically printed microstrip antenna with etched ground plane for UWB applications. In particular we have simulated two types of UWB printed monopole antennas: circular patch and Compact Miniaturized Semi-Circular patch UWB monopole antennas and in detail investigation was presented on size miniaturization in order to achieve very...
A novel 3D monopole antenna is proposed for wide band handset application. A tri-monopole technique is employed to increase the impedance bandwidth, and patch loading is introduced to improve impedance matching. The measured and simulation impedance bandwidths are from 0.8 to 1.0 GHz, 1.7 to 2.5 GHz. It can be worked at GSM 800MHz, 900MHz, 1800MHz, 1900MHz, UMTS 2200MHz and WIFI 2450MHz. The measured...
Dipole antennas and their arrays are widely used in most of the communication applications. The analysis and synthesis of the arrays becomes simple, if the coupling is neglected as in the case of classical array theory. However, in the case of arrays of wire antennas there exists mutual coupling between the adjacent elements of the array. Moreover, the radiation properties of the array with such widely...
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