A Transverse Directional Coupler with Adjustable Coupling and Reconfigurable Response
A technology of directional coupler and coupling degree, which is applied in the field of electronics, can solve the problems of complex processing and large loss, and achieve the effect of low cost, simple structure, and easy processing and integration
Inactive Publication Date: 2018-07-17
DALIAN MARITIME UNIVERSITY
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Problems solved by technology
However, most of the bridge circuits in the prior art need to be based on the via technology, which has large losses and complicated processing
Method used
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[0025] Such as figure 1A straddle directional coupler with adjustable coupling degree and reconfigurable response is characterized in that it includes a dielectric substrate 1; the dielectric substrate 1 is provided with a parallel coupled microstrip line 2, a bridging capacitor 3, A first coupling degree adjustment circuit and a second coupling degree adjustment circuit capable of adjusting the coupling degree across the directional coupler, a varactor diode 4, a bias voltage for providing a reverse bias voltage to the varactor diode 4 Generating circuit 5, and 4 input / output parts connected to both ends of the parallel coupled microstrip line 2; the parallel coupled microstrip line 2 includes a first microstrip line 21 and a second microstrip line parallel to each other 22; the cross-connect capacitor 3 and the varactor diode 4 are placed between the first microstrip line 21 and the second microstrip line 22; the first coupling degree adjustment circuit and the first microst...
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The invention discloses a stretch-across directional coupler with a large coupling degree regulation range and reconfigurable response. The stretch-across directional coupler with the large coupling degree regulation range and reconfigurable response is characterized by comprising a dielectric substrate; and a parallel coupled microstrip line, a flying capacitor, a first coupling degree regulation circuit and a second coupling degree regulation circuit, a variable capacitance diode, a bias voltage generation circuit and four input / output parts are arranged on the dielectric substrate, wherein the first coupling degree regulation circuit and the second coupling degree regulation circuit are capable of regulating coupling degree of the stretch-across directional coupler, the bias voltage generation circuit is used for providing inverse bias voltage for the variable capacitance diode, and the four input / output parts are connected with two ends of the parallel coupled microstrip line. The stretch-across directional coupler with the large coupling degree regulation range and reconfigurable response can realize arbitrary reconfiguration and regulation of coupling degree, and has the performance of being capable of being reconfigured into a bridge circuit.
Description
technical field [0001] The invention belongs to the field of electronic technology, and relates to a microwave device, in particular to a spanning directional coupler with adjustable coupling degree and reconfigurable response. Background technique [0002] The directional coupler is a four-port microwave device that divides the input signal power into two output signals in a specific frequency range according to a specific ratio. Its main functions include signal power distribution / combination, power sampling / detection, and antenna array feed, etc. . Directional couplers have been widely used in microwave circuits such as mixers, filters, balanced power amplifiers, phase shifters and antenna array systems. With the development of multi-standard front-ends in modern communication systems, directional couplers are required to have the functions of reconfigurable frequency, reconfigurable coupling degree and reconfigurable phase. Couplers that can realize reconfigurable coup...
Claims
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IPC IPC(8): H01P5/18
CPCH01P5/184
Inventor 刘宏梅房少军周芸
Owner DALIAN MARITIME UNIVERSITY