GB2274547A - Antenna tuning arrangement - Google Patents
Antenna tuning arrangement Download PDFInfo
- Publication number
- GB2274547A GB2274547A GB9301183A GB9301183A GB2274547A GB 2274547 A GB2274547 A GB 2274547A GB 9301183 A GB9301183 A GB 9301183A GB 9301183 A GB9301183 A GB 9301183A GB 2274547 A GB2274547 A GB 2274547A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tune
- delta
- frequency
- antenna
- capacitor
- 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.)
- Withdrawn
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 5
- 238000001228 spectrum Methods 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 abstract description 5
- 239000004411 aluminium Substances 0.000 abstract description 5
- 239000003381 stabilizer Substances 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/005—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with variable reactance for tuning the antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G5/00—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
- H01G5/04—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of effective area of electrode
- H01G5/14—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of effective area of electrode due to longitudinal movement of electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
An antenna tuning arrangement comprises a capacitor which is adjustable to tune the antenna to a desired frequency. The capacitor comprises a first tubular element 6 which fits inside a second, larger, tubular element 7. The arrangement may work as an antenna in itself or it may be attached to an existing antenna such as a loop antenna. The capacitor is constructed of aluminium tubing and plastic. <IMAGE>
Description
DESCRIPTION
The Delta Tune is a form of capacitor, it is constructed of aluminium tubing and plastic.
It consists of one aluminium tube element insulated, fitting inside a larger aluminium tube element. With a plastic stabiliser and a aluminium ground stabiliser.
Claims (1)
- The Delta Tune is a form of capacitor between the transmit and the ground ratio. It can be manipulated to any size for transmitting and receiving purposes.The ground of the Delta Tune balances the signal evenly from low frequency to high frequency. Once the frequency is balanced standing wave ratio is brought down by slightly moving the extension feed (6) thus making less signal reflection and the antenna very wide band.Tests have shown that anywhere on the radio spectrum the Delta Tune will work whether shortened or lengthened for an even match on the frequency your using. The Delta Tune can work as an aerial in itself or attached to an existing aerial.A test was performed showing that without moving the Delta Tune from the 26 - 27 mhz band the Delta Loop antenna covered the following: BAND FREQUENCY STANDING WAVE RATIO lOM 29.500 1.328.000 1.3 llM 27.500 1.227.000 1.1 15M 21.500 1.521.000 1.8 20M 14.500 2.514.000 3.0 By readjusting the Delta Tune you can tune into further frequencies.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9301183A GB2274547A (en) | 1993-01-21 | 1993-01-21 | Antenna tuning arrangement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9301183A GB2274547A (en) | 1993-01-21 | 1993-01-21 | Antenna tuning arrangement |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9301183D0 GB9301183D0 (en) | 1993-03-10 |
GB2274547A true GB2274547A (en) | 1994-07-27 |
Family
ID=10729093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9301183A Withdrawn GB2274547A (en) | 1993-01-21 | 1993-01-21 | Antenna tuning arrangement |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2274547A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1547136A (en) * | 1978-02-07 | 1979-06-06 | Marconi Co Ltd | Radio antennae |
GB2125225A (en) * | 1982-06-08 | 1984-02-29 | Sven Ramstroem | A loop antenna for radio communication |
GB2130803A (en) * | 1982-11-16 | 1984-06-06 | Moratalla Joaquin Bel | Improvements in antennae |
GB2189081A (en) * | 1986-04-09 | 1987-10-14 | Shakespeare Co | Monopole antenna |
-
1993
- 1993-01-21 GB GB9301183A patent/GB2274547A/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1547136A (en) * | 1978-02-07 | 1979-06-06 | Marconi Co Ltd | Radio antennae |
GB2125225A (en) * | 1982-06-08 | 1984-02-29 | Sven Ramstroem | A loop antenna for radio communication |
GB2130803A (en) * | 1982-11-16 | 1984-06-06 | Moratalla Joaquin Bel | Improvements in antennae |
GB2189081A (en) * | 1986-04-09 | 1987-10-14 | Shakespeare Co | Monopole antenna |
Also Published As
Publication number | Publication date |
---|---|
GB9301183D0 (en) | 1993-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |