CN101599575A - A kind of novel intercom antenna - Google Patents
A kind of novel intercom antenna Download PDFInfo
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- CN101599575A CN101599575A CN 200910112149 CN200910112149A CN101599575A CN 101599575 A CN101599575 A CN 101599575A CN 200910112149 CN200910112149 CN 200910112149 CN 200910112149 A CN200910112149 A CN 200910112149A CN 101599575 A CN101599575 A CN 101599575A
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Abstract
The invention discloses a kind of novel intercom antenna, it comprises oscillator, dielectric, interface, outer cover and loading coil; Also comprise first resonant capacitance and second resonant capacitance, loading coil is divided into first section and second section that is connected in series mutually, this first section and second section has a common port, and has a free end respectively, first section free ending grounding, the common port of first section and second section is electrically connected an end of second resonant capacitance, and second section free end is electrically connected an end of the oscillator and first resonant capacitance respectively, and the other end of first resonant capacitance and second resonant capacitance is electrically connected to interface jointly.Compared with prior art, the present invention is three frequency ranges with single frequency band expansion in the past, satisfy FM broadcasting, VHF and uhf band intercom three frequency range communication antennas fully, avoided changing the waste and the inconvenience of antenna, for the intercom communications industry has been set up good basis.
Description
Technical field
The present invention relates to a kind of antenna, relate in particular to a kind of intercom antenna.
Background technology
Antenna is the indispensable critical piece of modern society's electronic applications, and can the quality of its performance be directly connected to the operating efficiency of intercom and be brought into play fully.Present more single hop wideband or two sections narrow frequencies of being to use of intercom.Intercom or use the single hop frequency like this, or use the narrow frequencies of two sections, two sections narrow frequency antennas can only be worked in 8～10MHz scope usually.If change the working frequency range of intercom, supporting with it antenna must be changed again and the optimum Match state could be reached with it, otherwise this antenna can't be realized optimum Match according to working frequency range, and the bad words of antenna and intercom coupling directly influence communication effect and speech quality.And the inconvenience that the replacing antenna will cause waste economically and use.
Summary of the invention
The purpose of this invention is to provide a kind of novel intercom antenna with three working frequency range.
Technical scheme of the present invention is such: a kind of novel intercom antenna, comprise the oscillator, dielectric and the interface that are connected successively, and cover at the outer outer cover of above-mentioned oscillator, dielectric and interface, and be set around the loading coil on the above-mentioned dielectric; Also comprise first resonant capacitance and second resonant capacitance, above-mentioned loading coil is divided into first section and second section that is connected in series mutually, this first section and second section has a common port, and has a free end respectively, above-mentioned first section free ending grounding, the common port of above-mentioned first section and second section is electrically connected an end of above-mentioned second resonant capacitance, above-mentioned second section free end is electrically connected an end of above-mentioned oscillator and above-mentioned first resonant capacitance respectively, and the other end of above-mentioned first resonant capacitance and second resonant capacitance is electrically connected to above-mentioned interface jointly.
Also comprise pcb board, this pcb board is arranged on the above-mentioned dielectric, and above-mentioned first resonant capacitance and second resonant capacitance are arranged on this pcb board.
Above-mentioned first resonant capacitance and second resonant capacitance are patch capacitor.
The capacity of above-mentioned first resonant capacitance and second resonant capacitance is 1～30P.
Above-mentioned oscillator is that length is the oscillator of 1/4 wavelength of 100～600mm.
The diameter of above-mentioned dielectric is 3～8mm, and length is 10～20mm.
Above-mentioned loading coil is left and right sides rotation direction and twines 5～20 circles along above-mentioned dielectric.
The length of above-mentioned pcb board is 5～25mm, and width is 2～8mm, and thickness is 0.1～2mm.
After adopting such scheme, intercom antenna of the present invention, during work, working signal is coupled to loading coil through second resonant capacitance, and is passed to oscillator; Or working signal encloses the oscillator that affacts that coupling produces excitation through first resonant capacitance and loaded line; Or signal directly arrives oscillator by first resonant capacitance, and loaded line encloses the effect of ground connection.These three kinds of working methods can obtain the working frequency range of 88～108MHz, 136～174MHz and 400～470MHz respectively.Compared with prior art, the present invention is three frequency ranges with single frequency band expansion in the past, satisfy FM broadcasting, VHF and uhf band intercom three frequency range communication antennas fully, avoided changing the waste and the inconvenience of antenna, for the intercom communications industry has been set up good basis.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is circuit theory diagrams of the present invention.
Specific embodiment
A kind of novel intercom antenna of the present invention, as shown in Figure 1, comprise the oscillator 1, dielectric 2 and the interface 3 that are connected successively, oscillator 1, dielectric 2 and the interface 3 outer outer covers 4 that are covered with, be arranged with loading coil 6 on the dielectric 2, dielectric 2 also is provided with pcb board 7, and pcb board 7 is arranged at loading coil 6 outsides on the dielectric 2, and pcb board 7 is provided with resonant capacitance 8 and resonant capacitance 9.Wherein, oscillator 1 is the oscillator of 1/4 wavelength of 100～600mm for length; Resonant capacitance 8 and resonant capacitance 9 employing capacity are the patch capacitor of 1～30P; The diameter of dielectric 2 is 3～8mm, and length is 10～20mm; Loading coil 6 is left and right sides rotation direction and twines 5～20 circles along dielectric 2; The length of pcb board 7 is 5～25mm, and width is 2～8mm, and thickness is 0.1～2mm.
As shown in Figure 2, loading coil 6 is divided into first section 61 and second sections 62 that are connected in series mutually, has a common port 6a for first section 61 and second sections 62, and have a free end 6b and 6c respectively, first section 61 free end 6b ground connection, first section 61 and second sections 62 common port 6a is electrically connected the end of resonant capacitance C2 (resonant capacitance 9 among Fig. 1), second section 62 free end 6c is electrically connected an end of oscillator 1 and resonance capacitor C 1 (resonant capacitance 8 among Fig. 1) respectively, and the other end of resonant capacitance C1 and resonance capacitor C 2 is electrically connected to interface 3 jointly.
Operation principle:
Working signal is by interface 3 inputs, be coupled to loading coil 6 by resonant capacitance C2, first section 61 effect of playing loading, play ground connection for second section 62, and be passed to oscillator 1, can obtain the working frequency range of 88-108MHz, debugging can be satisfied the demand of FM broadcasting now fully to the Vswr that makes this frequency range (voltage standing wave ratio)≤2.
Working signal is by interface 3 inputs, affact oscillator 1 by what 6 couplings of resonant capacitance C1 and loading coil produced excitation, can obtain the working frequency range of 136～174MHz, debugging is satisfied the demand of VHF frequency range intercom now fully to the Vswr that makes this frequency range (voltage standing wave ratio)≤2.
Working signal directly arrives oscillator 1 by resonant capacitance C1, and loading coil 6 plays ground connection, can obtain the working frequency range of 400-470MHz, and debugging is satisfied the demand of uhf band intercom now fully to the Vswr that makes this frequency range (voltage standing wave ratio)≤2.
A kind of novel intercom antenna of the present invention, it is three frequency ranges that single frequency band is in the past expanded, satisfy FM broadcasting, VHF and uhf band intercom three frequency range communication antennas fully, avoided changing the waste and the inconvenience of antenna, for the intercom communications industry has been set up good basis.Frequency band 88～108MHz/136～174MHz/400～the 470MHz of this antenna, gain on average can reach 2.5dBi.Antenna size may diminish to
Claims (8)
1, a kind of novel intercom antenna comprises the oscillator, dielectric and the interface that are connected successively, and covers at the outer outer cover of above-mentioned oscillator, dielectric and interface, and is set around the loading coil on the above-mentioned dielectric; It is characterized in that: also comprise first resonant capacitance and second resonant capacitance, above-mentioned loading coil is divided into first section and second section that is connected in series mutually, this first section and second section has a common port, and has a free end respectively, above-mentioned first section free ending grounding, the common port of above-mentioned first section and second section is electrically connected an end of above-mentioned second resonant capacitance, above-mentioned second section free end is electrically connected an end of above-mentioned oscillator and above-mentioned first resonant capacitance respectively, and the other end of above-mentioned first resonant capacitance and second resonant capacitance is electrically connected to above-mentioned interface jointly.
2, a kind of novel intercom antenna according to claim 1, it is characterized in that: also comprise pcb board, this pcb board is arranged on the above-mentioned dielectric, and above-mentioned first resonant capacitance and second resonant capacitance are arranged on this pcb board.
3, a kind of novel intercom antenna according to claim 1 and 2, it is characterized in that: above-mentioned first resonant capacitance and second resonant capacitance are patch capacitor.
4, a kind of novel intercom antenna according to claim 1 and 2, it is characterized in that: the capacity of above-mentioned first resonant capacitance and second resonant capacitance is 1～30P.
5, a kind of novel intercom antenna according to claim 1 is characterized in that: above-mentioned oscillator is that length is the oscillator of 1/4 wavelength of 100～600mm.
6, a kind of novel intercom antenna according to claim 1, it is characterized in that: the diameter of above-mentioned dielectric is 3～8mm, length is 10～20mm.
7, a kind of novel intercom antenna according to claim 1 is characterized in that: above-mentioned loading coil is left and right sides rotation direction and twines 5～20 circles along above-mentioned dielectric.
8, a kind of novel intercom antenna according to claim 2, it is characterized in that: the length of above-mentioned pcb board is 5～25mm, and width is 2～8mm, and thickness is 0.1～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910112149 CN101599575B (en) | 2009-07-01 | 2009-07-01 | Novel walkie talkie antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910112149 CN101599575B (en) | 2009-07-01 | 2009-07-01 | Novel walkie talkie antenna |
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| Publication Number | Publication Date |
|---|---|
| CN101599575A true CN101599575A (en) | 2009-12-09 |
| CN101599575B CN101599575B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910112149 Active CN101599575B (en) | 2009-07-01 | 2009-07-01 | Novel walkie talkie antenna |
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| CN (1) | CN101599575B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207395A (en) * | 2016-08-28 | 2016-12-07 | 福建省泉州华鸿通讯有限公司 | A kind of Vehicle mounted station multiband, high-gain aerial |
| CN110176664A (en) * | 2019-04-18 | 2019-08-27 | 深圳市锦鸿无线科技有限公司 | Simulate the external interphone antenna of simultaneous public network bimodulus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145693A (en) * | 1977-03-17 | 1979-03-20 | Electrospace Systems, Inc. | Three band monopole antenna |
| JP2826433B2 (en) * | 1993-02-26 | 1998-11-18 | 日本電気株式会社 | Dual frequency matching circuit for antenna |
| US7158819B1 (en) * | 2000-06-29 | 2007-01-02 | Motorola, Inc. | Antenna apparatus with inner antenna and grounded outer helix antenna |
| US7242364B2 (en) * | 2005-09-29 | 2007-07-10 | Nokia Corporation | Dual-resonant antenna |
| CN201490332U (en) * | 2009-07-01 | 2010-05-26 | 福建省泉州华鸿通讯有限公司 | Novel interphone antenna |
-
2009
- 2009-07-01 CN CN 200910112149 patent/CN101599575B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207395A (en) * | 2016-08-28 | 2016-12-07 | 福建省泉州华鸿通讯有限公司 | A kind of Vehicle mounted station multiband, high-gain aerial |
| CN110176664A (en) * | 2019-04-18 | 2019-08-27 | 深圳市锦鸿无线科技有限公司 | Simulate the external interphone antenna of simultaneous public network bimodulus |
| CN110176664B (en) * | 2019-04-18 | 2021-07-23 | 深圳市锦鸿无线科技有限公司 | Analog and public network dual-mode external interphone antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101599575B (en) | 2012-07-04 |
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