CN104102135A - Self-adaptive control matching network - Google Patents
Self-adaptive control matching network Download PDFInfo
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- CN104102135A CN104102135A CN201410375643.4A CN201410375643A CN104102135A CN 104102135 A CN104102135 A CN 104102135A CN 201410375643 A CN201410375643 A CN 201410375643A CN 104102135 A CN104102135 A CN 104102135A
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- matching network
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Abstract
The invention relates to a self-adaptive control matching network. The self-adaptive control matching network structurally comprises a coupler, an adjustable matching network, a sensor and a control circuit. The self-adaptive control matching network has the advantages that load impedance and working efficiency are not limited; the problem of system performance deterioration caused by loss generated during usage of most matching networks is solved effectively; size of the network and the loss can be set to realize a self-adaptive control function according to specific needs; since a passive inductor and a capacity cell are adopted for the adjustable matching network, the circuit bandwidth is larger, the loss is smaller, and an adjusting function can be realized in various different frequency bands. In addition, the self-adaptive control matching network is structurally good in adaptability and high in stability and can be widely applied to corresponding frequency band systems needing the self-adaptive matching network.
Description
Technical field
The present invention relates to broadband matching network, particularly a kind of adaptive control matching network, belongs to electronics and the communications field.
Background technology
Along with the development of development, especially the ambulatory handheld formula wireless communication terminal of the systems such as microwave and millimeter wave communication, radar, individual soldier's satellite mobile communication terminal, military and civilian multimode multiplex communication terminal, harsh all the more to the requirement of device in system.Wherein running into maximum problems is exactly about power delivery problem, and this is also attractive especially problem in network theory, in communication facilities and sorts of systems.Lossless matching network application is very extensive, and its quality directly determines the quality of product, payes attention to so the research to lossless matching network and production are always various countries.Due to the development of computer technology, solid-state technique, material industry, the development of matching network also steps on a new stage, and towards high precision, low-power consumption, small size future development.Simultaneously along with the improving constantly of digital communication system clock frequency, and the increase of digital network aspect speed and bandwidth, matching network is had to wider passband and tunable characteristic also proposes higher requirement.And utilizing the matching network of classic method design to be faced with bandwidth and adjustable problem, the present invention, mainly based on this point, adopts a new matching network structure, adopts adaptive control algorithm, has realized a kind of broadband, adjustable adaptive control matching network.
Summary of the invention
The object of the invention is to provide a kind of adaptive control matching network, and this network has adaptive control, simple in structure, wider bandwidth, volume is little, stability is high matching network.
The technical scheme that realizes the object of the invention is: a kind of adaptive control matching network, comprises signal transmission, coupling mechanism, adjustable matching network, reflection coefficient sensor and minimal reflection control circuit composition; The signal that wherein 1 termination of coupling mechanism need to be transmitted, the adjustable matching network of 2 termination, 3 ends are connected with sensing respectively with 4 ends; Sensor sensing signal passes to control circuit, makes reflection coefficient reach minimum by adjustable matching network.
Compared with prior art, because the present invention adopts adaptive control matching network, the remarkable advantage bringing is: (1) matching network is adjustable; (2) bandwidth is adjustable; (3) volume is little; (4) stability is high; (5) applicability is extensive, applicable to various in the system of performance requirement harshness.
Brief description of the drawings
Fig. 1 is a kind of adaptive control matching network of the present invention structural representation.
Fig. 2 is a kind of adaptive control matching network circuit of the present invention figure.
Fig. 3 be the adjustable matching network of the present invention there are the two of shunt capacitance
network.
Fig. 4 is a kind of adaptive matching networks insertion loss of the present invention and return loss performance plot.
Fig. 5 is a kind of adaptive matching networks phase propetry of the present invention figure.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
In conjunction with Fig. 1, Fig. 2, the present invention is a kind of adaptive matching networks, and the wave band of choosing 1-2GHz at this as an example, is described.This NEW ADAPTIVE control matching network, comprises signal transmission, coupling mechanism, adjustable matching network, reflection coefficient sensor and minimal reflection control circuit composition; The signal that wherein 1 termination of coupling mechanism need to be transmitted, the adjustable matching network of 2 termination, 3 ends are connected with sensing respectively with 4 ends; Sensor sensing signal passes to control circuit, makes reflection coefficient reach minimum by adjustable matching network.
For the control of minimal reflection coefficient, mainly utilize formula
(1)
Time row control, the size of loaded impedance can change by adjustable matching network, thereby reaches the function of control.
In conjunction with Fig. 3, it is two that adjustable matching network is chosen bypass
network, it at least has a single variable condenser in parallel with inductor as shown in Figure 3.By changing electric capacity
size, can adjust amount of bandwidth, Circuit tuning performance very easily, to meet performance requirement.
In conjunction with Fig. 4, Fig. 5, choose the result of above-mentioned matching network as explanation, now the bandwidth of circuit reaches 1GHz, and within the scope of this, its phase meter is shown linear phase, the result shows that this control circuit has good Broadband Matching performance.
In conjunction with Fig. 1, Fig. 2, adaptive control matching network of the present invention, its principle of work is summarized as follows: comprise signal transmission, coupling mechanism, adjustable matching network, reflection coefficient sensor and minimal reflection control circuit composition; The signal that wherein 1 termination of coupling mechanism need to be transmitted, the adjustable matching network of 2 termination, 3 ends are connected with sensing respectively with 4 ends; Sensor sensing signal passes to control circuit, makes reflection coefficient reach minimum by adjustable matching network.By changing the size of adjustable matching network electric capacity, can adjust amount of bandwidth, realize bandwidth controlled.Make the loss minimum of network.Thereby realize the adaptive control function of matching network.
Adaptive control matching network of the present invention is by realizations such as AD8302, USB6009 and relevant passive devices, and processing is simple, good stability, and reliability is high.Wherein adjustable matching network can adopt different forms to realize, thereby volume is significantly reduced.Show fabulous Broadband Matching performance.
Claims (4)
1. an adaptive control matching network, is characterized in that: comprise signal transmission, coupling mechanism, adjustable matching network, reflection coefficient sensor and minimal reflection control circuit composition; The signal that wherein 1 termination of coupling mechanism need to be transmitted, the adjustable matching network of 2 termination, 3 ends are connected with sensing respectively with 4 ends; Sensor sensing signal passes to control circuit, makes reflection coefficient reach minimum by adjustable matching network.
2. according to the adaptive control matching network described in claim 1, it is characterized in that: adjustable matching network is that bypass is two
network, it at least has a single variable condenser in parallel with inductor.
According to described in claim 1 adaptive control matching network, it is characterized in that: minimal reflection control circuit is main main to be utilized
(1)
Control, the size of loaded impedance can change by adjustable matching network, makes the input impedance of network and output impedance reach conjugate impedance match, thereby reaches the function of control.
4. according to the adaptive control matching network described in claim 1,2 and 3, it is characterized in that: circuit structure can be
In 1MHz-5GHz frequency range, realize adaptive network coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375643.4A CN104102135A (en) | 2014-08-01 | 2014-08-01 | Self-adaptive control matching network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375643.4A CN104102135A (en) | 2014-08-01 | 2014-08-01 | Self-adaptive control matching network |
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| CN104102135A true CN104102135A (en) | 2014-10-15 |
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| CN201410375643.4A Pending CN104102135A (en) | 2014-08-01 | 2014-08-01 | Self-adaptive control matching network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320101A (en) * | 2014-11-07 | 2015-01-28 | 王少夫 | Antenna self-adaptation control matching circuit |
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| JP2006121736A (en) * | 2002-10-25 | 2006-05-11 | Hitachi Metals Ltd | High frequency component, high frequency module and communication device using them |
| US20120075033A1 (en) * | 2010-09-29 | 2012-03-29 | Liang Ouyang | Single matching network for matching multi-frequency and method of constructuring the same and radio frequency power source system using the same |
| CN102638280A (en) * | 2012-04-19 | 2012-08-15 | 汤姆逊广播电视技术(北京)有限公司 | Self-adaption tuning system of middle-wave broadcast transmitting antenna |
| CN103296988A (en) * | 2012-02-10 | 2013-09-11 | 英飞凌科技股份有限公司 | Adjustable impedance matching network |
| JP2013537029A (en) * | 2010-08-31 | 2013-09-26 | サムスン エレクトロニクス カンパニー リミテッド | Adaptive resonant power transmitter |
| CN103716064A (en) * | 2013-10-21 | 2014-04-09 | 香港应用科技研究院有限公司 | Antenna circuit and optimization method |
| US20140152523A1 (en) * | 2012-11-30 | 2014-06-05 | The Chinese University Of Hong Kong | Device for decoupling antennas in compact antenna array and antenna array with the device |
| CN204116834U (en) * | 2014-08-01 | 2015-01-21 | 王少夫 | A kind of adaptive control matching network |
-
2014
- 2014-08-01 CN CN201410375643.4A patent/CN104102135A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006121736A (en) * | 2002-10-25 | 2006-05-11 | Hitachi Metals Ltd | High frequency component, high frequency module and communication device using them |
| JP2013537029A (en) * | 2010-08-31 | 2013-09-26 | サムスン エレクトロニクス カンパニー リミテッド | Adaptive resonant power transmitter |
| US20120075033A1 (en) * | 2010-09-29 | 2012-03-29 | Liang Ouyang | Single matching network for matching multi-frequency and method of constructuring the same and radio frequency power source system using the same |
| CN103296988A (en) * | 2012-02-10 | 2013-09-11 | 英飞凌科技股份有限公司 | Adjustable impedance matching network |
| CN102638280A (en) * | 2012-04-19 | 2012-08-15 | 汤姆逊广播电视技术(北京)有限公司 | Self-adaption tuning system of middle-wave broadcast transmitting antenna |
| US20140152523A1 (en) * | 2012-11-30 | 2014-06-05 | The Chinese University Of Hong Kong | Device for decoupling antennas in compact antenna array and antenna array with the device |
| CN103716064A (en) * | 2013-10-21 | 2014-04-09 | 香港应用科技研究院有限公司 | Antenna circuit and optimization method |
| CN204116834U (en) * | 2014-08-01 | 2015-01-21 | 王少夫 | A kind of adaptive control matching network |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320101A (en) * | 2014-11-07 | 2015-01-28 | 王少夫 | Antenna self-adaptation control matching circuit |
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Application publication date: 20141015 |
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