GB1195653A - Resonant Cavity Having Adjacent Coupling Elements to Provide a Rejection Frequency - Google Patents
Resonant Cavity Having Adjacent Coupling Elements to Provide a Rejection FrequencyInfo
- Publication number
- GB1195653A GB1195653A GB39966/68A GB3996668A GB1195653A GB 1195653 A GB1195653 A GB 1195653A GB 39966/68 A GB39966/68 A GB 39966/68A GB 3996668 A GB3996668 A GB 3996668A GB 1195653 A GB1195653 A GB 1195653A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- coupling elements
- resonant frequency
- cavity
- rejection frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/04—Coaxial resonators
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
1,195,653. Cavity resonators. MOTOROLA Inc. 21 Aug., 1968 [15 Sept., 1967], No. 39966/68. Heading H1W. A cavity resonator having both a resonant frequency and a rejection frequency is formed by inner and outer coaxial cylinders, and is provided with first and second coupling elements located at a pair of points on the outer cylinder and positioned within the cavity, the pair of points being so located that the lines joining them to the axis define an angle less than or equal to 90 degrees; this angle, which is adjustable, determines the rejection frequency, which may therefore be arranged to increase the attenuation of frequencies close to the resonant frequency. As shown, Fig. 1, the outer conductor 10 and the inner conductor 16, the length of which may be adjusted by a plunger 19 to vary the resonant frequency, form a resonant line shunted by the tap closure 13. The input and output couplings 61 and 63, Fig. 6, may be loops or (Fig. 7, not shown) probes, and pivotal mountings are described (Figs. 11 to 13, not shown) whereby they may be adjusted and clamped at different angles with respect to one another.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66790467A | 1967-09-15 | 1967-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1195653A true GB1195653A (en) | 1970-06-17 |
Family
ID=24680147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39966/68A Expired GB1195653A (en) | 1967-09-15 | 1968-08-21 | Resonant Cavity Having Adjacent Coupling Elements to Provide a Rejection Frequency |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3537041A (en) |
| GB (1) | GB1195653A (en) |
| IL (1) | IL30691A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080601A (en) * | 1976-04-01 | 1978-03-21 | Wacom Products, Incorporated | Radio frequency filter network having bandpass and bandreject characteristics |
| US4249147A (en) * | 1978-10-20 | 1981-02-03 | Tx Rx Systems Inc. | Cavity filter and multi-coupler utilizing same |
| US4206428A (en) * | 1978-10-20 | 1980-06-03 | Tx Rx Systems Inc. | Series notch filter and multicoupler utilizing same |
| US4334203A (en) * | 1980-04-09 | 1982-06-08 | Broadcast Electronics, Inc. | Second harmonic suppressor for power amplifier tank circuit |
| US4491806A (en) * | 1982-10-06 | 1985-01-01 | Motorola, Inc. | Resonant cavity with integrated microphonic suppression means |
| US4475092A (en) * | 1982-12-20 | 1984-10-02 | Motorola, Inc. | Absorptive resonant cavity filter |
| US4794354A (en) * | 1987-09-25 | 1988-12-27 | Honeywell Incorporated | Apparatus and method for modifying microwave |
| US7224248B2 (en) | 2004-06-25 | 2007-05-29 | D Ostilio James P | Ceramic loaded temperature compensating tunable cavity filter |
| US20060135092A1 (en) * | 2004-12-16 | 2006-06-22 | Kathrein Austria Ges. M. B. H. | Radio frequency filter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE32749C (en) * | Firma nagel & kaemp in Hamburg | Apparatus for sorting granular and powdery materials by centrifugal force in a stream of air or liquid | ||
| US2418961A (en) * | 1944-08-01 | 1947-04-15 | Rca Corp | Broad band antenna for aircraft |
| US2637782A (en) * | 1947-11-28 | 1953-05-05 | Motorola Inc | Resonant cavity filter |
| BE544443A (en) * | 1955-01-21 |
-
1967
- 1967-09-15 US US667904A patent/US3537041A/en not_active Expired - Lifetime
-
1968
- 1968-08-21 GB GB39966/68A patent/GB1195653A/en not_active Expired
- 1968-09-12 IL IL30691A patent/IL30691A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IL30691A0 (en) | 1969-01-29 |
| US3537041A (en) | 1970-10-27 |
| IL30691A (en) | 1972-07-26 |
| DE1791105B2 (en) | 1977-02-17 |
| DE1791105A1 (en) | 1971-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PCNP | Patent ceased through non-payment of renewal fee |