Submitted on: 14 July 2002.
Revised on: 21 July 2002.
Accepted on: 17 August 2002.
MICROWAVE JOURNAL---HORIZON HOUSE PUBLICATIONS INC
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Submitted on: 21 May 2003.
Revised on: 04 July 2003.
Accepted on: 13 July 2003.
MICROWAVE JOURNAL---HORIZON HOUSE PUBLICATIONS INC