Communications: radio wave antennas – Antennas – High frequency type loops
Reexamination Certificate
2011-06-28
2011-06-28
Phan, Tho G (Department: 2821)
Communications: radio wave antennas
Antennas
High frequency type loops
C343S741000, C343S866000
Reexamination Certificate
active
07969373
ABSTRACT:
A planar antenna device (AD) for a TV receiver (R) comprises i) a loop antenna (LA) comprising first (E1) and second (E2) ends spaced one from the other, ii) a tuning means (TM) connected to the first (E1) and second (E2) ends of the loop antenna (LA) and arranged to control the frequency of the VHF TV signals this loop antenna (LA) is able to receive from command signals, iii) a first ground plane (GP1) cooperating with the loop antenna (LA) in order to act as a UHF monopole in receiving TV signals with UHF frequencies, iv) a first coupling means (CM1) coupled to the loop antenna (LA) at a first chosen location and arranged to deliver the received VHF signals, v) a second coupling means (CM2) coupled to the loop antenna (LA) at a second chosen location and arranged to deliver the received UHF signals, vi) an amplification means (AM) coupled to the first ground plane (GP1) and arranged to amplify TV signals, and vii) a switching means (SM) arranged to couple the amplification means (AM) to the first coupling means (CM1) and/or to the second coupling means (CM2) in dependence on command signals in order that the amplification means deliver amplified selected TV signals with VHF and/or UHF frequencies to an output.
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Boekestein Peter
Tsilioukas Efthimios
NXP B.V.
Phan Tho G
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