US4816838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable receiving antenna system
Assignee: Denso Corp
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Filing: 1986-04-17
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Granted: 1989-03-28
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Expires: 2006-04-17
Abstract
Abstract A portable receiving antenna system for providing communication with a transmitting station carried by a geostationary satellite. The system includes a portable case, a flat plate antenna arranged to cover an opening of the portable case, and an adjustable support arranged within the portable case to support the flat plate antenna at an incident angle capable of receiving electromagnetic waves from the transmitting station. The flat plate antenna is in the form of a micro strip line slot array antenna including a dielectric layer, a metallic earth film formed with a plurality of spaced slots and secured to the surface of the dielectric layer in such a manner that the slots are arranged to receive the electromagnetic waves from the transmitting station, and a feeder line circuit secured to the rear surface of the dielectric layer. Preferably, an azimuth compass and a converter are mounted within the portable case, the converter being connected to an output terminal of the feeder line circuit.
Inventors
- 👤 Hiroshi Mizuno
- 👤 Yoshihisa Shibata
- 👤 Takashi Sakurai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:57
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/06; H01Q21/061; H01Q1/00; H01Q1/12; H01Q1/125; H01Q1/27; H04; H04B; H04B7/00; H04B7/14; H04B7/15; H04B7/185; H04B7/1853; H04B7/18569; H04B7/18571
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
182 words
A portable receiving antenna system for providing communication with a transmitting station carried by a geostationary satellite, comprising: a portable case; a flat plate antenna assembled with said portable case; an azimuth compass mounted within said portable case so that a pointer of said compass points to a standard directional indication scale when said portable case is pointing to receive electromagnetic wavas from said transmitting station; and an adjustable support arranged within said portable case to support said flat plate antenna at an incident angle capable of receiving said electromagnetic waves from said transmitting station, said adjustable support including: a universal joint secured to one side of said portable case, a first support rod connected at one end thereof to said universal joint to be inclined in an appropriate direction, and a second support rod having one end adjustably coupled with another end of said first support rod and another end for engagement with said flat plate antenna so that the entire length of said first and second support rods is determined to support said flat plate antenna at the incident angle.
Claim 2
Dependent Claim
182 words
A portable receiving antenna system for providing communication with a transmitting station carried by a geostationary satellite, comprising: a portable case; a flat plate antenna assembled with said portable case; an azimuth compass mounted within said portable case so that a pointer of said compass points to a standard directional indication scale when said portable case is pointing to receive electromagnetic wavas from said transmitting station; and an adjustable support arranged within said portable case to support said flat plate antenna at an incident angle capable of receiving said electromagnetic waves from said transmitting station, said adjustable support including: a universal joint secured to one side of said portable case, a first support rod connected at one end thereof to said universal joint to be inclined in an appropriate direction, and a second support rod having one end adjustably coupled with another end of said first support rod and another end for engagement with said flat plate antenna so that the entire length of said first and second support rods is determined to support said flat plate antenna at the incident angle.
Claim 3
Dependent Claim
54 words
A portable receiving antenna system as recited in claim 1, wherein: said first support rod is integrally provided at the another end thereof with a screw element, and said second support rod is formed at the one end thereof with a screw element adjustably threaded into the screw element of said first support rod.
Claim 4
Dependent Claim
29 words
A portable receiving antenna system as recited in claim 1, wherein said flat plate antenna is in the form of a flat plate micro strip line slot array antenna.
Claim 5
Dependent Claim
238 words
A portable receiving antenna system for providing communication with a transmitting station carried by a geostationary satellite, comprising: a square portable case provided therein with a square base plate and having a square opening; a square flat plate antenna hinged at one side thereof to one side of said portable case to open and close the opening of said case; an azimuth compass mounted on said base plate in said portable case so that a pointer of said compass points to a standard directional indication scale when said portable case is pointing to receive electromagnetic waves from said transmitting station, said compass being located at a position adjacent the other side of said portable case opposed to the one side of the same; and an adjustable support arranged within said portable case to support said flat plate antenna at an incident angle capable of receiving said electromagnetic waves from said transmitting station, said adjustable support including: a universal joint secured to the other side of said portable case, a first support rod connected at one end thereof to said universal joint to be moved in an appropriate direction, and a second support rod having one end adjustably coupled with an another end of said first support rod and another end for engagement with said flat plate antenna so that the entire length of said support rods is determined to support said flat plate antenna at the incident angle.
Claim 6
Dependent Claim
238 words
A portable receiving antenna system for providing communication with a transmitting station carried by a geostationary satellite, comprising: a square portable case provided therein with a square base plate and having a square opening; a square flat plate antenna hinged at one side thereof to one side of said portable case to open and close the opening of said case; an azimuth compass mounted on said base plate in said portable case so that a pointer of said compass points to a standard directional indication scale when said portable case is pointing to receive electromagnetic waves from said transmitting station, said compass being located at a position adjacent the other side of said portable case opposed to the one side of the same; and an adjustable support arranged within said portable case to support said flat plate antenna at an incident angle capable of receiving said electromagnetic waves from said transmitting station, said adjustable support including: a universal joint secured to the other side of said portable case, a first support rod connected at one end thereof to said universal joint to be moved in an appropriate direction, and a second support rod having one end adjustably coupled with an another end of said first support rod and another end for engagement with said flat plate antenna so that the entire length of said support rods is determined to support said flat plate antenna at the incident angle.
Claim 7
Dependent Claim
29 words
A portable receiving antenna system as recited in claim 4, wherein said flat plate antenna is in the form of a flat plate micro strip line slot array antenna.
Claim 8
Dependent Claim
37 words
A portable receiving antenna system as recited in claim 4, wherein: said compass is embedded within said base plate, and said first and second support rods are detachably embedded within said base plate in said portable case.
Claim 9
Dependent Claim
79 words
A portable receiving antenna system as recited in claim 12, further comprising: a converter mounted on said base plate at a place adjacent the one side of said portable case and connected to an output terminal of said flat plate antenna to translate an output frequency from said plate antenna into an input frequency for a receiving set, and a detachable cable contained within said portable case to connect said converter to an input terminal of said receiving set.
Claim 10
Dependent Claim
18 words
A portable receiving antenna system as recited in claim 7, wherein said receiving set is a television set.
Claim 11
Dependent Claim
26 words
A portable receiving antenna system as recited in claim 7, wherein said converter and said cable are embedded within said base plate in said portable case.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-27 | 1992-09-26 | 1993-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-27 | 1996-09-26 | 1997-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-27 | 2000-09-26 | 2001-03-28 | $7700.00 | Window Closed / Lapsed |