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| 11. |
An efficient algorithm for antenna synthesis updating following null-constraint changes |
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IEE Proceedings H (Microwaves, Antennas and Propagation),
Volume 132,
Issue 5,
1985,
Page 339-341
M.A.Magdy,
F.J.Paoloni,
J.Y.C.Cheah,
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PDF (305KB)
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摘要:
The procedure to maximise the array signal to noise ratio with null constraints involves an optimisation problem that can be solved efficiently using a modified Cholesky decomposition(UD)technique. Following changes in the main lobe and/or null positions, the optimal element weight vector can be updated without the need for a new complete matrix inversion. Some properties of theUDtechnique can be utilised such that the updating algorithm reprocesses only a part of the unit triangular matrixU. Proper ordering of matrix entries can minimise the dimension of the updated part.
DOI:10.1049/ip-h-2.1985.0061
出版商:IEE
年代:1985
数据来源: IET
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| 12. |
Characteristics of asymmetrical coupled shielded microstrip lines |
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IEE Proceedings H (Microwaves, Antennas and Propagation),
Volume 132,
Issue 5,
1985,
Page 342-343
S.S.Bedair,
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PDF (208KB)
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摘要:
Closed-form expressions are derived for the characteristics of the asymmetrical coupled shielded microstrip lines. Numerical results using these expressions approach those of the asymmetrical unshielded microstrip lines as the shieldheights ratio approaches the critical value.
DOI:10.1049/ip-h-2.1985.0062
出版商:IEE
年代:1985
数据来源: IET
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