Patent US5087777A successfully refreshed from Google Patents.
Patent EP0121294A2 successfully refreshed from Google Patents.
EP0121294A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A cavity resonator coupling type power distributor/power combiner
Assignee: Fujitsu Ltd
•
Filing: 1984-01-25
•
Granted: —
•
Expires: 2004-01-25
Abstract
Abstract A cavity resonator coupling type power distributor/ power combiner which can be used either as a distributing amplifier or as a combining unit, and comprising a first cavity resonator having a single coupling terminal (7), a second cavity resonator (6) having a plurality of coupling terminals (8a...8n), and a coupling window (9) or a coupling rod for electromagnetically coupling the second cavity resonator with the first coupling resonator, whereby a wide bandwidth of microwave electric power can be distributed or combined.
Inventors
- 👤 Yoshiaki Kaneko
- 👤 Toshiyuki Saito
- 👤 Naofumi Okubo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 16:24
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
61 words
A cavity resonator coupling type power distributor/power combiner which can function -either as a distributing amplifier or as a combining unit, comprising: a first cavity resonator means having a single coupling terminal; a second cavity resonator means having a plurality of coupling terminals; and a coupling means for electromagnetically coupling said second cavity resonator means with said first cavity resonator means.
Claim 2
Dependent Claim
61 words
A cavity resonator coupling type power distributor/power combiner which can function -either as a distributing amplifier or as a combining unit, comprising: a first cavity resonator means having a single coupling terminal; a second cavity resonator means having a plurality of coupling terminals; and a coupling means for electromagnetically coupling said second cavity resonator means with said first cavity resonator means.
Claim 3
Dependent Claim
36 words
A cavity resonator coupling type power distributor/power combiner as set forth in claim 1, wherein said second cavity resonator has a cylindrical shape and resonates in a TM 0,M,0 mode, where m is a positive integer.
Claim 4
Dependent Claim
34 words
A cavity resonator coupling type power distributor/power combiner as set forth in claim lor 2, wherein said coupling means is a coupling window formed between said first cavity resonator and said second cavity resonator.
Claim 5
Dependent Claim
79 words
A cavity resonator coupling type power distributor/power combiner as set forth in claim 3, wherein the diameter of said coupling window is equal to the distance between two positions where the intensity of the electric field in the first cavity resonator has peak values, said two positions being symmetric with respect to the center of said first cavity resonator, whereby, mode coupling without generation of undesired modes is established between said first cavity resonator and said second cavity resonator.
Claim 6
Dependent Claim
41 words
A cavity resonator coupling type power distributor/power combiner as set forth in claim 2, wherein said first cavity resonator has a cylindrical shape and resonates with TM 0,n,0 mode, where n is a positive integer equal to or smaller than m.
Claim 7
Dependent Claim
94 words
A cavity resonator coupling type power distributor/power combiner. as set forth in claiml,2 or 5, wherein said coupling means is a coupling rod fixed through a dielectric supporting member to a metal plate between said first cavity resonator and said second cavity resonator, said metal plate being a part of a metal housing of said cavity resonator coupling type power distributor/power combiner, said coupling rod having, at both ends, antennas for establishing electric field coupling between said first cavity resonator and said coupling rod and between said second cavity resonator and said coupling rod.
Claim 8
Dependent Claim
42 words
A cavity resonator coupling type power distributor/power combiner as set forth in any preceding claim, wherein said second cavity resonator comprises a bottom plate which has, at its centre, an adjusting screw for controlling the resonance frequency of said second cavity resonator.
Claim 9
Dependent Claim
93 words
- A cavity resonator coupling type power distributor/power combiner as set forth in claim 3or 4, further comprising an adjusting screw for controlling the resonance frequency of said second cavity resonator and an adjusting antenna for controlling the coupling coefficient between said first cavity resonator and said second cavity resonator by controlling the position of said adjusting antenna with respect to the position of said coupling window, said second cavity resonator comprising a bottom plate opposite to said coupling window, said adjusting screw and said adjusting antenna being mounted on said bottom plate.
Claim 10
Dependent Claim
42 words
A cavity resonator coupling type power distributor/power combined as set forth in claim 8, wherein said bottom plate has a first tapped hole for receiving said adjusting screw, and said adjusting screw has a second tapped hole for receiving said adjusting antenna.
Claim 11
Dependent Claim
66 words
A cavity resonator coupling type power distributor/power combiner as set forth in claim 8, wherein said bottom plate has a first tapped hole for receiving and holding said adjusting screw, said adjusting screw has a hole for receiving said adjusting antenna, and a supporting member being fixed to said bottom plate, said supporting member having a second tapped hole for receiving and holding said adjusting antenna.
Claim 12
Dependent Claim
39 words
ll. A cavity resonator coupling type power distributor/power combiner as set forth in any preceding claim, wherein, said single coupling terminal has, at its end extending into said first cavity resonator 11, an antenna for establishing electric field coupling.
Claim 13
Dependent Claim
30 words
A cavity resonator coupling type power distributor/power combiner as set forth in any preceding claim, wherein each of said plurality of said coupling terminals has a magnetic field coupling loop.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.