Input impedance of annular ring microstrip antenna using circuit theory approach

by: A Bhattacharyya, R Garg

Antennas and Propagation, IEEE Transactions on [legacy, pre - 1988], Vol. 33, No. 4. (1985), pp. 369-374.

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Abstract

Input impedance and bandwidth of an annular ring microstrip antenna have been determined by modeling the antenna as a section of radial line loaded with wall admittances. The effect of mutual coupling between the radiating apertures has been taken into account. The theoretically calculated values of input impedance for TM<inf>12</inf>-mode are compared with measurements. The agreement is good. Higher order modes have been found to be present in the vicinity of TM<inf>12</inf>-mode. The reactance due to these modes can be utilized to increase the voltage standing-wave ratio (VSWR) bandwidth of the antenna.

@article{citeulike:2187934, abstract = {Input impedance and bandwidth of an annular ring microstrip antenna have been determined by modeling the antenna as a section of radial line loaded with wall admittances. The effect of mutual coupling between the radiating apertures has been taken into account. The theoretically calculated values of input impedance for TM<inf>12</inf>-mode are compared with measurements. The agreement is good. Higher order modes have been found to be present in the vicinity of TM<inf>12</inf>-mode. The reactance due to these modes can be utilized to increase the voltage standing-wave ratio (VSWR) bandwidth of the antenna.}, author = {Bhattacharyya, A. and Garg, R. }, booktitle = {Antennas and Propagation, IEEE Transactions on [legacy, pre - 1988]}, citeulike-article-id = {2187934}, journal = {Antennas and Propagation, IEEE Transactions on [legacy, pre - 1988]}, keywords = {annular, antenna, circuit, impedance, microstrip, patch, ring}, number = {4}, pages = {369--374}, posted-at = {2008-01-02 12:19:25}, priority = {2}, title = {Input impedance of annular ring microstrip antenna using circuit theory approach}, url = {http://ieeexplore.ieee.org/xpls/abs\_all.jsp?arnumber=1143584}, volume = {33}, year = {1985} }

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TY - JOUR ID - citeulike:2187934 L3 - citeulike-article-id:2187934 TI - Input impedance of annular ring microstrip antenna using circuit theory approach T2 - Antennas and Propagation, IEEE Transactions on [legacy, pre - 1988] JF - Antennas and Propagation, IEEE Transactions on [legacy, pre - 1988] VL - 33 IS - 4 SP - 369 EP - 374 N2 - Input impedance and bandwidth of an annular ring microstrip antenna have been determined by modeling the antenna as a section of radial line loaded with wall admittances. The effect of mutual coupling between the radiating apertures has been taken into account. The theoretically calculated values of input impedance for TM<inf>12</inf>-mode are compared with measurements. The agreement is good. Higher order modes have been found to be present in the vicinity of TM<inf>12</inf>-mode. The reactance due to these modes can be utilized to increase the voltage standing-wave ratio (VSWR) bandwidth of the antenna. KW - annular KW - antenna KW - circuit KW - impedance KW - microstrip KW - patch KW - ring AU - Bhattacharyya, A AU - Garg, R PY - 1985/// UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1143584 ER -

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