Matrix of switched antenna elements having a conductor pattern supported on individual insulators for measuring electromagnetic radiation

• US 5,734,262 A
• Filed: 02/28/1996
• Issued: 03/31/1998
• Est. Priority Date: 03/01/1995
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Okamura, Yukimichi, Saito, Yutaka
• Primary Examiner(s): Karlsen, Ernest F.
• Assistant Examiner(s): KOBERT, RUSSELL MARC
• Application Number:
  US08/608,088
• Time in Patent Office: 762 Days
• Field of Search: 324/95, 342/373, 343/853, 343/855, 343/866, 343/870, 343/873, 343/878, 343/893
• US Class Current: 324/95
• CPC Class Codes: G01R 29/0878 Sensors; antennas; probes; detectors wave guide measuring sections G01R1/24
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40

Abstract

An electromagnetic radiation measuring device includes a plurality of antenna elements arranged in a matrix. Each antenna element includes an insulator having a substantially rectangular parallelepiped shape, supporting at least one conductor pattern. The first and second ends of the conductor pattern are connected to first and second print patterns on a printed circuit board. A detection signal is selectively provided by a switching device from at least one conductor pattern of each antenna element.

Claims

1. An electromagnetic radiation measuring apparatus, comprising:

a plurality of antenna elements arranged in a matrix responsive to electromagnetic waves;

a printed circuit board having a plurality of sets of first and second print patterns; and

switching means;

each antenna element having;

an insulator having a substantially rectangular parallelepiped;

at least one conductor pattern, having first and second ends, on at least a surface of said rectangular parallelepiped; and

connecting means for mechanically and electrically connecting first and second ends to said first and second print patterns of each of said plurality of sets of first and second print patterns, said switching means selectively outputting a detection signal generated by said at least one conductor pattern of said each antenna element in response to said electromagnetic waves.

2. An electromagnetic radiation measuring apparatus, as claimed in claim 1, wherein said at least one conductor has a straight line portion having a constant width.

3. An electromagnetic radiation measuring apparatus, as claimed in claim 1, wherein said at least one conductor has a partial circle shaped portion.

4. An electromagnetic radiation measuring apparatus, as claimed in claim 1, wherein said at least one conductor has an oval shaped portion.

5. An electromagnetic radiation measuring apparatus, as claimed in claim 1, wherein said at least one conductor pattern is spirally wound around said insulator by at least a turn such that an axis of said at least one conductor spirally wound is parallel to said printed circuit board.

6. An electromagnetic radiation measuring apparatus, as claimed in claim 1, wherein each antenna element has a plurality of said conductor patterns.

7. An electromagnetic radiation measuring apparatus, as claimed in claim 1, wherein said at least one conductor is arranged on a top surface of said insulator and said connecting means comprises first and second electrodes for providing connections between said at least one conductor and said first and second print patterns respectively.