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US5604469A
Expired / Lapsed
US
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High-frequency integrated circuit
Assignee: Murata Manufacturing Co Ltd
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Filing: 1995-08-28
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Granted: 1997-02-18
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Expires: 2015-08-28
Abstract
Abstract A high-frequency integrated circuit which operates in a microwave band or in a millimeter wave band. The high-frequency integrated circuit has devices with a nonradiative dielectric waveguide such as an oscillator, a circulator, etc., and a mount case with a nonradiative dielectric waveguide in which these devices are mounted. Each of the devices with a nonradiative dielectric waveguide has a couple of conductors, a dielectric strip which is disposed between the conductors and propagates a high-frequency electromagnetic wave in a specified mode, a mounting surface which is formed on one of the conductors, and an end surface which is formed on an end of the conductors so as to be vertical to a traveling direction of the electromagnetic wave propagated in the dielectric strip and on which an end of the dielectric strip is exposed. The devices with a nonradiative dielectric waveguide are evaluated separately, and thereafter, the devices are mounted in the mount case individually.
Inventors
- 👤 Youhei Ishikawa
- 👤 Toru Tanizaki
- 👤 Hiroshi Nishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:48
CPC Classifications
H; H01; H01P; H01P3/00; H01P3/16; H01P3/165; G; G01; G01S; G01S7/00; G01S7/02; G01S7/03; G01S7/032; H01P1/00; H01P1/32; H01P1/38; H03; H03B; H03B9/00; H03B9/12; H03B9/14
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
196 words
A high-frequency integrated circuit comprising a device and a mount case for containing said device, said circuit comprising: a) a device with a nonradiative dielectric waveguide comprising: a pair of first conductors which are parallel to each other with a specified spacing; a first dielectric strip which is disposed between the first conductors; a plane mounting surface which is formed on one of the first conductors; and an end surface which is formed on an end of the first conductors so as to be vertical to a direction in which an electromagnetic wave is propagated in the first dielectric strip, an end of the first dielectric strip being exposed on the end surface; and b) a mount case with a nonradiative dielectric waveguide in which said device with a nonradiative dielectric waveguide is mounted, the mount case comprising: a pair of second conductors which are parallel to each other with a specified spacing, said device with a nonradiative dielectric waveguide being mounted between the second conductors; and a second dielectric strip which is disposed between the second conductors, an end of said second dielectric strip being electromagnetically coupled to said end of said first dielectric strip.
Claim 2
Dependent Claim
196 words
A high-frequency integrated circuit comprising a device and a mount case for containing said device, said circuit comprising: a) a device with a nonradiative dielectric waveguide comprising: a pair of first conductors which are parallel to each other with a specified spacing; a first dielectric strip which is disposed between the first conductors; a plane mounting surface which is formed on one of the first conductors; and an end surface which is formed on an end of the first conductors so as to be vertical to a direction in which an electromagnetic wave is propagated in the first dielectric strip, an end of the first dielectric strip being exposed on the end surface; and b) a mount case with a nonradiative dielectric waveguide in which said device with a nonradiative dielectric waveguide is mounted, the mount case comprising: a pair of second conductors which are parallel to each other with a specified spacing, said device with a nonradiative dielectric waveguide being mounted between the second conductors; and a second dielectric strip which is disposed between the second conductors, an end of said second dielectric strip being electromagnetically coupled to said end of said first dielectric strip.
Claim 3
Dependent Claim
28 words
A high-frequency integrated circuit as claimed in claim 1, wherein the exposed end of the first dielectric strip is close to an end of the second dielectric strip.
Claim 4
Dependent Claim
29 words
A high-frequency integrated circuit as claimed in claim 1, wherein the exposed end of the first dielectric strip is in contact with an end of the second dielectric strip.
Claim 5
Dependent Claim
32 words
A high-frequency integrated circuit as claimed in claim 1, wherein the exposed end of the first dielectric strip has a projection which is protruded from the end surface of the first conductors.
Claim 6
Dependent Claim
32 words
A high-frequency integrated circuit as claimed in claim 1, wherein the exposed end of the first dielectric strip has a recess which is retracted from the end surface of the first conductors.
Claim 7
Dependent Claim
20 words
A high-frequency integrated circuit as claimed in claim 1, wherein the device with a nonradiative dielectric waveguide is an oscillator.
Claim 8
Dependent Claim
20 words
A high-frequency integrated circuit as claimed in claim 1, wherein the device with a nonradiative dielectric waveguide is a circulator.
Claim 9
Dependent Claim
33 words
A high-frequency integrated circuit as claimed in claim 1, wherein one of the second conductors has a window through which the device with a nonradiative dielectric waveguide is mounted in the mount case.
Claim 10
Dependent Claim
18 words
A high-frequency integrated circuit as claimed in claim 1, further comprising an antenna provided to the mount case.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-18 | 2000-08-19 | 2001-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-18 | 2004-08-19 | 2005-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-18 | 2008-08-19 | 2009-02-18 | $7700.00 | Window Closed / Lapsed |