Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2008-06-09
2010-06-08
Nguyen, Hoang V (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
Reexamination Certificate
active
07733273
ABSTRACT:
An antenna includes a polyhedral dielectric material, a feed loop, a polygonal radiating patch, and shorting plates. The feed loop is electrically connected with a radio frequency identification (RFID) tag chip for supplying power to the RFID tag chip. The polygonal radiating patch is magnetically coupled with the feed loop for radiating the electromagnetic waves. Each of the shorting plates disconnects the radiating patch and a ground surface and controls the magnetic coupling of the radiating patch and the feed loop. Accordingly, an RFID tag that can be attached to a metal material is provided.
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Byunggil Yu, RFID Tag Antenna Using Two-Shorted Microstrip Patches Mountable on Metallic Objects, Microwave and Optical Technology Letters, Feb. 2007, pp. 414-416, vol. 49, No. 2, RFIC Research and Education Center, Kwangwoon University, 447-1 Wolgye-Dong, Nowon-Gu, Seoul, 139-701, Korea, Department of Electrical and Computer Engineering, Southern Illinois University Carbondale, Carbondale IL 62901-6603.
Kipo Office Action dated Nov. 29, 2008 on the instant application's foreign priority application (Korean Patent Application No. 10-2007-0097822). All references cited in the KIPO Office Action are cited above and provided herewith.
Choi Gil Young
Choi Won Kyu
Kim Jeong Seok
Pyo Cheol Sig
Electronics and Telecommunications Research Institute
Kile Goekjian Reed & McManus
Nguyen Hoang V
Park Jae Y.
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