Antenna unit

Details Antenna unit Antenna unit

2006-08-29

2006-08-29

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Wave guide type

C343S705000, C343S756000

Reexamination Certificate

active

07098859

ABSTRACT:
In a variable power divider including a first 90° phase combiner (30), a second 90° phase combiner (40), and a phase-amplitude adjustment block (50), the phase-amplitude adjustment block (50) includes, correspondingly to two-channel polarized signals, variable phase shifters (51, 52) for adjusting their phase amounts and variable attenuators (55, 56) for adjusting amplitudes (attenuation amounts), and the phase amounts and the amplitudes of the two-channel polarized signals can be adjusted by an antenna control unit (60). Further, there are included a phase shifter (53) and an attenuator (57) provided on two-channel signal lines between an orthomode transducer (20) and a first 90° phase combiner (30) and for equalizing the amplitudes and phases of the two-channel polarized signals. By this, an antenna apparatus can be inexpensively provided which uses a reflector antenna (10) to perform transmission/reception of a signal to/from a satellite at high accuracy, and is miniaturized to be suitable for mounting on an aircraft or the like.

REFERENCES:
patent: 4498061 (1985-02-01), Morz et al.
patent: 4972199 (1990-11-01), Raghavan et al.
patent: 2003/0027586 (2003-02-01), Johnson et al.
patent: 62-30406 (1987-02-01), None
patent: 02-274004 (1990-11-01), None
patent: 3-104326 (1991-05-01), None
patent: 11-17469 (1999-01-01), None
patent: 2002-141849 (2002-05-01), None
patent: 2001-196834 (2002-07-01), None
patent: 2003-198489 (2003-07-01), None

Affiliated with

Also associated with

Rating

Antenna unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antenna unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3636699