Analysis of Planar and Curved Microstrip Antennas

Ralf T. Jacobs, Arnulf Kost, Hajime Igarashi, Alan J. Sangster

Abstract


A finite element-boundary integral method has been developed to investigate the impedance and radiation characteristics of planar and conformal cavity backed microstrip patch antennas. In case of conformal antennas, the radiating element is mounted on a cylindrical surface. The effect of curvature is analysed and the impact of the cavity size on the performance of the radiating element is investigated. For the examples considered, it is shown that the simulated results are in good agreement with measurement.

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References


A. Bayliss and E. Turkel, "Radiation boundary conditions for wave-like equations,`` Communications on Pure and Applied Mathematics, vol. 33, no. 6, pp. 707–725, Nov. 1980.

R. Mittra, O. Ramahi, A. Khebir, R. Gordon, and A. Kouki, "A review of absorbing boundary conditions for two and three-dimensional electromagnetic scattering problems,`` IEEE Transactions on Magnetics, vol. 25, no. 4, pp. 3034–3039, July 1989.

J.-P. Berenger, "A perfectly matched layer for the absorption of electromagnetic waves,`` Journal of Computational Physics, vol. 114, no. 2, pp. 185–200, Oct. 1994.

Z. S. Sacks, D. M. Kingsland, R. Lee, and J.-F. Lee, "A perfectly matched anisotropic absorber for use as an absorbing boundary condition,`` IEEE Transactions on Antennas and Propagation, vol. 43, no. 12, pp. 1460–1463, Dec. 1995.

O. M. Ramahi and R. Mittra, "Finite element solution for a class of unbounded geometries,`` IEEE Transactions on Antennas and Propagation, vol. 39, no. 2, pp. 244–250, Feb. 1991.

J.-M. Jin, J. L. Volakis, and J. D. Collins, "A finite-element–boundary-integral method for scattering and radiation by two- and three-dimensional structures,`` IEEE Antennas and Propagation Magazine, vol. 33, no. 3, pp. 22–32, June 1991.

J. Gong, J. L. Volakis, A. C. Woo, and H. T. G. Wang, "A hybrid finite element-boundary integral method for the analysis of cavity-backed antennas of arbitrary shape,`` IEEE Transactions on Antennas and Propagation, vol. 42, no. 9, pp. 1233–1242, Sept. 1994.

J.-M. Jin and J. L. Volakis, "A hybrid finite element method for scattering and radiation by microstrip patch antennas and arrays residing in a cavity,`` IEEE Transactions on Antennas and Propagation, vol. 39, no. 11, pp. 1598–1604, Nov. 1991.

——, "Scattering and radiation analysis of three-dimensional cavity arrays via a hybrid finite-element method,`` vol. 41, no. 11, pp. 1580–1586, Nov. 1993.

L. C. Kempel and J. L. Volakis, "Scattering by cavity-backed antennas on a circular cylinder,`` IEEE Transactions on Antennas and Propagation, vol. 42, no. 9, pp. 1268–1279, Sept. 1994.

A. Bayliss and E. Turkel, "Radiation boundary conditions for wave-like equations,`` Communications on Pure and Applied Mathematics, vol. 33, no. 6, pp. 707–725, Nov. 1980.

R. Mittra, O. Ramahi, A. Khebir, R. Gordon, and A. Kouki, "A review of absorbing boundary conditions for two and three-dimensional electromagnetic scattering problems,`` IEEE Transactions on Magnetics, vol. 25, no. 4, pp. 3034–3039, July 1989.

J.-P. Berenger, "A perfectly matched layer for the absorption of electromagnetic waves,`` Journal of Computational Physics, vol. 114, no. 2, pp. 185–200, Oct. 1994.

Z. S. Sacks, D. M. Kingsland, R. Lee, and J.-F. Lee, "A perfectly matched anisotropic absorber for use as an absorbing boundary condition,`` IEEE Transactions on Antennas and Propagation, vol. 43, no. 12, pp. 1460–1463, Dec. 1995.

O. M. Ramahi and R. Mittra, "Finite element solution for a class of unbounded geometries,`` IEEE Transactions on Antennas and Propagation, vol. 39, no. 2, pp. 244–250, Feb. 1991.

J.-M. Jin, J. L. Volakis, and J. D. Collins, "A finite-element–boundary-integral method for scattering and radiation by two- and three-dimensional structures,`` IEEE Antennas and Propagation Magazine, vol. 33, no. 3, pp. 22–32, June 1991.

J. Gong, J. L. Volakis, A. C. Woo, and H. T. G. Wang, "A hybrid finite element-boundary integral method for the analysis of cavity-backed antennas of arbitrary shape,`` IEEE Transactions on Antennas and Propagation, vol. 42, no. 9, pp. 1233–1242, Sept. 1994.

J.-M. Jin and J. L. Volakis, "A hybrid finite element method for scattering and radiation by microstrip patch antennas and arrays residing in a cavity,`` IEEE Transactions on Antennas and Propagation, vol. 39, no. 11, pp. 1598–1604, Nov. 1991.

——, "Scattering and radiation analysis of three-dimensional cavity arrays via a hybrid finite-element method,`` vol. 41, no. 11, pp. 1580–1586, Nov. 1993.

L. C. Kempel and J. L. Volakis, "Scattering by cavity-backed antennas on a circular cylinder,`` IEEE Transactions on Antennas and Propagation, vol. 42, no. 9, pp. 1268–1279, Sept. 1994.


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