Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2007-12-11
2007-12-11
Le, Thanh Cong (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C343S702000
Reexamination Certificate
active
11013008
ABSTRACT:
An antenna (400) for sending and receiving signals in a plurality of frequency bands generates a plurality of resonances in the plurality of frequency bands and includes a first radiating element (402) that generates a first resonance in a first frequency band, a second radiating element (404), coupled to and extending at an angle from the first radiating element (402), that generates a second resonance in the first frequency band, and a third radiating element (406), coupled to and extended at an angle from the first radiating element (402). A capacitive coupling between the second radiating element (404) and the third radiating element (406) generates a loop with a third resonance in the first frequency band, and the third radiating element (406) generates a fourth resonance in a second frequency band independent of the loop at the second frequency band.
REFERENCES:
patent: 7030833 (2006-04-01), Ohara et al.
patent: 7148849 (2006-12-01), Lin
patent: 7164933 (2007-01-01), Steigerwald et al.
patent: 2003/0189522 (2003-10-01), Zeilinger
Johnson McKay R.
Kenoun Robert
Chen Sylvia
Cong Le Thanh
Motorola Inc.
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