Portable satellite communication equipment with foldable flat antennae common to both transmission and reception

• US 5,542,104 A
• Filed: 05/26/1994
• Issued: 07/30/1996
• Est. Priority Date: 05/27/1993
• Status: Expired due to Term

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Ozawa, Hirohisa, Ogawa, Shigeo
• Primary Examiner(s): Pham, Chi H.
• Application Number:
  US08/249,321
• Time in Patent Office: 796 Days
• Field of Search: 455/82, 455/83, 455/89, 455/90, 455/101, 455/129, 455/272-274, 455/277.1, 455/277.2, 455/281, 455/282, 363/702, 363/872, 363/893
• US Class Current: 455/575.7
• CPC Class Codes: H01Q 1/22 by structural association with other equipment or articles
• CPC Class Codes: H04B 1/3827 Portable transceivers
• CPC Class Codes: H04B 7/18571 for satellites; for fixed or mobile stations

Abstract

In a portable satellite communication equipment including a transponder for transmission and reception, and an antenna portion which is electrically coupled to the transponder, the antenna portion has first and second common flat antennae. The first and the second common flat antennae are common to both the transmission and the reception and are foldably coupled to each other.

Claims

1. A portable satellite communication equipment, comprising:

a terminal for transmission and reception;

an antenna portion which is electrically coupled to said terminal and which includes first and second common flat antennae, said first and said second common flat antennae being common to both said transmission and said reception and being foldably coupled to each other;

a primary hinge in said antenna portion and by which said first and second common flat antennae are foldably coupled to each other;

a distributor which distributes a microwave transmission signal to said first and second common flat antennae, respectively, and which mixes a microwave reception signal received from said first and second common flat antennas, respectively;

a signal cable which connects said distributor to each of said first and second common flat antennae; and

said distributor and said signal cable being contained in said primary hinge.

2. A portable satellite communication equipment as claimed in claim 1, said terminal being supplied with a voice or a facsimile signal from a telephone or a fax and producing a decoded baseband reception signal towards said telephone or said fax, said antenna portion transmitting a microwave transmission radio signal and receiving a microwave reception radio signal,

said terminal including:

an interface for connecting said telephone or said fax with said terminal;

a baseband processing portion which is connected to said interface and which codes said voice or said facsimile signal into a coded baseband transmission signal and decodes a converted baseband reception signal into said voice or said facsimile signal;

a transmission signal processing portion which converts said coded baseband transmission signal into a converted microwave transmission signal;

a reception signal processing portion which converts a filtered microwave reception signal into said converted baseband reception signal; and

a duplexer which selectively filters said converted microwave transmission signal and a mixed microwave reception signal into a filtered microwave transmission signal and said filtered microwave reception signal.

3. A portable satellite communication equipment as claimed in claim 2, wherein said signal cable in said primary hinge in said antenna portion connects said duplexer with said first and said second common flat antennae through said distributor.

4. A portable satellite communication equipment as claimed in claim 3, each of said first and said second common flat antennae having a front surface and a plurality of antenna elements arranged on said front surface, wherein said first and said second common flat antennae are folded to keep said front surfaces opposed to each other on folding.

5. A portable satellite communication equipment as claimed in claim 4, said antenna portion having a back surface, wherein said terminal is united with said antenna portion in the side of said back surface.

6. A portable satellite communication equipment as claimed in claim 4, wherein said antenna portion is also foldably connected to said terminal by said primary hinge.

7. A portable satellite communication equipment as claimed in claim 4, wherein said terminal has a secondary hinge, said antenna portion being foldably connected to said terminal by said secondary hinge.

8. A portable satellite communication equipment as claimed in claim 7, wherein said primary hinge and said secondary hinge are substantially perpendicular to each other.

9. A portable satellite communication equipment as claimed in claim 7, wherein said primary hinge and said secondary hinge are substantially parallel to each other.

10. A portable satellite communication equipment as claimed in claim 1, further comprising a cover which covers said distributor and said signal cable contained in said primary hinge, and thereby removal of said cover providing access to said distributor and signal cable.