Communications: radio wave antennas – Antennas – Microstrip
Patent
1997-11-24
1999-12-14
Wong, Don
Communications: radio wave antennas
Antennas
Microstrip
343702, 343795, 343833, H01Q 138, H01Q 124
Patent
active
060023694
ABSTRACT:
A microstrip antenna (300) provides improved bandwidth control by gap coupling first and second triangular patches (310, 312) over a ground plane (322). The first and second triangular patches (310, 312) are resonant at different frequencies. The use of gap-coupled triangular patches (310, 312) allows for smaller structured microstrip antennas.
REFERENCES:
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patent: 4980694 (1990-12-01), Hines
patent: 5170173 (1992-12-01), Krenz et al.
patent: 5229777 (1993-07-01), Doyle
patent: 5767809 (1996-03-01), Chuang et al.
"Transactions on Antennas and Propagation," IEEE vol. 43, No. 3, Mar. 1995.
"Improved Bandwidth of Microstrip Antennas using Parasitic Elements," IEE Proc. vol. 127, Pt. H. No. 4, Aug. 1980.
Clinger James
Doutre Barbara R.
Motorola Inc.
Wong Don
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