EP0682382A2
Expired / Lapsed
EP
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Microwave integrated tuned detector
Assignee: Kasten Chase Applied Res Ltd
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Filing: 1995-04-25
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Granted: —
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Expires: 2015-04-25
Abstract
Abstract A microwave detector, which integrates two circular patch antennas with a detector diode. The high impedance at the edge of the circular patch antenna is combined with 180° out of phase electric fields at diametrically opposite points, so as to match to the RF impedance of a zero or small DC bias diode. The result is a very simple, high-sensitivity narrow-band microwave integrated detector.
Inventors
- 👤 Alexandru Oprea
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 05:02
CPC Classifications
H; H03; H03J; H03J7/00; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/0407; H01Q9/0442; H01Q23/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
160 words
A microwave integrated tuned detector for receiving microwave signals in a predetermined frequency range, comprising: a) a DC output; b) a substrate; c) a grounded plane mounted on one side of said substrate; d) at least two circular patch antennae mounted on an opposite side of said substrate from said grounded plane, said antennae being of predetermined radius for exciting a dominant TM₁₁ mode in said predetermined frequency range; e) a detector diode having one terminal thereof connected to one of said at least two circular patch antennae, and having an opposite terminal thereof connected to the other of said at least two circular patch antennae; f) a centre point of said one of said at least two circular patch antennae being connected to said grounded plane for providing a DC return path for said detector diode; and g) a centre point of said other one of said at least two circular patch antennae being connected to said DC output.
Claim 2
Dependent Claim
16 words
The microwave integrated tuned detector of claim 1, wherein said detector diode is a Schottky diode.
Claim 3
Dependent Claim
14 words
The microwave integrated tuned detector of claim 2, wherein said Schottky diode is unbiased.
Claim 4
Dependent Claim
19 words
The microwave integrated tuned detector of claim 2, wherein said Schottky diode is biased at a small DC current.
Claim 5
Dependent Claim
25 words
The microwave integrated tuned detector of claim 1, wherein said detector diode is connected to respective edges of said at least two circular patch antennae.
References Cited (Backward Citations)
No citation records indexed.
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