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An eight element linear iris excited centered broadwall waveguide slotted array antenna is realized at 10GHz using FEM simulator. Different feeding arrangement is illustrated with proper electric field magnitude and phase distribution for obtaining higher gain and lower first side lobe level. 15.01dB gain with zero beam tilt and −14.89dB side lobe level is achieved in center fed case with 2.88dB improvement...
Normalized electric field along the slot length for different depth of iris is studied at 10GHz in this paper. Resonance length is obtained as 15mm for which electric field symmetry is observed. Thick iris-slot combination is studied with reassigned mesh to obtain perturbation of slot field at certain depth of iris. From the slot voltage calculation slot excitation is found to be at 5.3mm depth of...
A single feed multi frequency compact rectangular microstrip antenna is presented in this paper. A triangular slot is introduced at the upper edge of the patch to reduce the resonant frequency A small piece of triangular patch is grown within the triangular slot to improve the gain bandwidth performance of the antenna. The antenna size has been reduced by 32.9% when compared to a conventional square...
A single layer, single feed compact rectangular antenna is proposed. Resonant frequency has been reduced drastically by cutting unequal rectangular slots at the edge of the patch. Antenna size has been reduced by 46.13% with an increased frequency ratio.
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