Submitted on: 14 January 2012.
Revised on: 21 April 2012.
Accepted on: 03 June 2012.
___________________IEEE Antennas and Wireless Propagation Letters
Submitted on: 05 October 2024.
Revised on: 13 December 2024.
Accepted on: 11 January 2025.
___________________IEEE Antennas and Wireless Propagation Letters
Submitted on: 11 September 2024.
Revised on: 04 January 2025.
Accepted on: 04 February 2025.
___________________IEEE Antennas and Wireless Propagation Letters
Submitted on: 23 October 2014.
Revised on: 01 January 2015.
Accepted on: 24 January 2015.
___________________IEEE Antennas and Wireless Propagation Letters
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Submitted on: 23 October 1999.
Revised on: 15 January 2000.
Accepted on: 07 February 2000.
___________________IEEE Antennas and Wireless Propagation Letters