CN2032765U - Ring-arm oscillator antenna - Google Patents
Ring-arm oscillator antenna Download PDFInfo
- Publication number
- CN2032765U CN2032765U CN 88211666 CN88211666U CN2032765U CN 2032765 U CN2032765 U CN 2032765U CN 88211666 CN88211666 CN 88211666 CN 88211666 U CN88211666 U CN 88211666U CN 2032765 U CN2032765 U CN 2032765U
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- antenna
- ring
- utility
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- wide
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- Expired - Lifetime
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- Variable-Direction Aerials And Aerial Arrays (AREA)
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Abstract
The utility model discloses a new conformation of a half-wave doublet antenna whose two arms adapt a dual toroidal structure. The utility model has wide impedance frequency response and low input impedance, and is convenient for being directly connected with a feeder line of a coaxial cable. The antenna has the advantages of simple structure, wide working band, high cost performance. The ring-arm vibrator can be alone used as a wide-band antenna, or as an active unit of a multiple-unit directive antenna. The utility model is especially suitable for the fields of receiving antenna of multichannel TV, receiving antenna of FM broadcast, and signal receiving and sending antenna of extremely high frequency.
Description
The invention belongs to radio transmission and reception antenna technology, be applicable to fields such as television reception, FM broadcasting reception, superfrequency transceiver.
In advance TV and communication antenna, be the working band of extended antenna, the folded dipole that adopts a metal tube or bonding jumper bending to form usually is used as the active cell of independent antenna or multiple unit directional antenna.Yet, about 292 Ω of the input impedance of folded dipole, balanced to ground output, its central point is a zero potential, can not be that the uneven coaxial-cable feeder of 75 Ω directly is connected with characteristic impedance, must add the 4:1 impedance transformer therebetween and could realize being connected of coupling symmetry with balanced-unbalanced transformer (balun).The introducing of this intermediate link is complexity but also limited working band not only.
The objective of the invention is to above-mentioned shortcoming, adopt the ring arm oscillator of particular configuration to come the working band of extended antenna and simplify its structure, thereby improve performance, reduction cost at folded dipole.
The ring arm oscillator of being invented is the new configuration of broadband doublet antenna that a kind of two arms adopt the Crossed Circle structure, and the length of its each oscillator arms is about 1/4th operation wavelengths.This ring type vibrator arm (being called for short the ring arm) structural equivalents can obviously be improved the impedance frequency characteristic and the radiation characteristic of doublet antenna in the oscillator arms of overstriking.Simultaneously, the input impedance of ring arm oscillator is lower, and about 73 Ω are quite approaching with characteristic impedance 75 Ω of common radio frequency coaxial-cable feeder line.Therefore, needn't add impedance transformer between ring arm oscillator and the coaxial-cable feeder, just can realize the direct connection of the two, thereby simplified structure improves performance and only need insert simple quarter-wave plain conductor balanced-unbalanced transformer.
Concrete configuration of the present invention is provided by following examples and accompanying drawing thereof.Ring arm element antenna is made up of dipole arm (1), balanced-unbalanced transformer (2) and coaxial-cable feeder (3), it is characterized in that dipole arm is the Crossed Circle structure, as shown in Figure 1.Fig. 2 shows several concrete configuration scheme of ring arm Crossed Circle structure: (1) circle; (2) ellipse; (3) pyriform; (4) square circle; (5) rectangle; (6) rhombus etc.
Ring arm oscillator normal operation metal tube, bonding jumper or other conductors are made, and it both can be used as again the active cell of multiple-unit directional aerial separately as antenna, all had broadband character and high-performance price Ratio. Adopt this antenna can significantly improve the quality of TV receiving system and communication system.
Claims (2)
1, ring arm element antenna is made up of dipole arm (1), balanced-unbalanced transformer (2) and coaxial-cable feeder (3), it is characterized in that dipole arm is the Crossed Circle structure.
2, antenna according to claim 1, what it is characterized in that above-mentioned Crossed Circle structure specifically is configured as circle, ellipse, pyriform, square circle, rectangle or rhombus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211666 CN2032765U (en) | 1988-04-20 | 1988-04-20 | Ring-arm oscillator antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211666 CN2032765U (en) | 1988-04-20 | 1988-04-20 | Ring-arm oscillator antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2032765U true CN2032765U (en) | 1989-02-15 |
Family
ID=4845053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88211666 Expired - Lifetime CN2032765U (en) | 1988-04-20 | 1988-04-20 | Ring-arm oscillator antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2032765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222087B (en) * | 2008-01-08 | 2011-06-22 | 东南大学 | Multi-frequency ring shaped dipole antenna |
| CN104577308A (en) * | 2013-10-24 | 2015-04-29 | 华为终端有限公司 | Antenna |
-
1988
- 1988-04-20 CN CN 88211666 patent/CN2032765U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222087B (en) * | 2008-01-08 | 2011-06-22 | 东南大学 | Multi-frequency ring shaped dipole antenna |
| CN104577308A (en) * | 2013-10-24 | 2015-04-29 | 华为终端有限公司 | Antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |