Communications: radio wave antennas – Antennas – With support for antenna – reflector or director
Reexamination Certificate
2005-12-21
2011-10-11
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
With support for antenna, reflector or director
C343S890000
Reexamination Certificate
active
08035572
ABSTRACT:
Provided is an H-type monopole isolation antenna. The antenna provides an H-type monopole isolation antenna which can gain a high bi-directional transmitting/receiving isolation between a transmitting antenna and a receiving antenna of co-channel/co-polarization by including an antenna symmetrically positioned in right/left sides based on a covering means. A transmitting/receiving isolation antenna for maintaining high isolation between a transmitting signal and a receiving signal includes a cover which includes a conductor; and first and second antennas which are bisymmetrically positioned in right and left parts of the covering means and separately operated as a transmitting antenna or a receiving antenna. The antenna is used in a co-channel bi-direction repeater system.
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Karode, S.L., et al. (1999). “Dual Polarised Microstrip Patch Antenna Using Feedforward Isolation Enhancement for Simultaneous Transmit/Receive Applications.”National Conference on Antennas and Propagation. Mar. 30-Apr. 1, 1999. Conference Publication No. 461, IEE 1999. pp. 49-52.
Hao, Y., et al. (2001). “Isolation Enhancement of PBG Microstrip Diplexer Patch Antenna.”11thInternational Conference on Antennas and Propagation. Conference Publication No. 480. IEE 2001. pp. 86-89.
Jeon Soon-ik
Kim Joung-myoun
Park Ung-hee
Yun Je-hoon
Electronics and Telecommunications Research Institute
Ho Tan
Ladas & Parry LLP
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