Phase shifter configuration method for voltage reference circuit and microwave circuit
A voltage reference and microwave circuit technology, applied in the field of phase shifters, can solve the problems of low integration, inability to ensure the output voltage consistency of each sub-array of the Josephson junction and the optimal operating phase margin.
Pending Publication Date: 2019-04-19
NAT INST OF METROLOGY CHINA +1
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Problems solved by technology
[0004] Based on this, it is necessary to solve the problem that the traditional phase shifter has low integration and cannot ensure the consistency of the output voltage of each sub-array of the Josephson junction and the optimal operating phase margin, and provide a high integration, Josephson junction Phase shifter configuration method and microwave circuit of voltage reference circuit with optimal consistency of subarray output voltage and operating phase margin
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[0036] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail through the following embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
[0037] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application, unless otherwise specified, include both direct and indirect connections (connections). In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated ...
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The application provides a phase shifter configuration method for a voltage reference circuit and a microwave circuit. In order to improve the integration level, a structure of connecting a pluralityof Josephson junction submatrix arrays in series and sharing one microwave source transmission port. By a phase shifter, one of a first path of microwave and a second path of microwave is subjected tophase shifting by minus 90 degrees after passing through the phase shifter; and after the microwave reaches the tail end of a transmission line, a reflected signal is subjected to phase shifting, sothat minus 180 degrees of phase shifting can be implemented. Meanwhile, the other path of microwave does not pass through the phase shifter, and at the moment, two paths of microwaves are reverse in phase and are just offset, so that effects of reducing reflection and effectively utilizing the input microwaves can be achieved. Therefore, consistency and an operation phase margin of an output voltage of each Josephson junction submatrix in the voltage reference voltage can reach the optimum, the output voltage of each Josephson junction submatrix is the most consistent in step width and the largest in average step width, and performance of a system is improved.
Description
technical field [0001] The present application relates to the technical field of phase shifters, in particular to a phase shifter configuration method of a voltage reference circuit and a microwave circuit. Background technique [0002] A phase shifter is a device that can adjust the phase of a wave, and is widely used in circuits such as communications and instrumentation. A phase shifter is a commonly used passive microwave device, which is used to change the phase of the input signal without changing the amplitude of the input signal. Generally speaking, it has a flat frequency response within the design bandwidth. [0003] In the application of a voltage reference circuit, a phase shifter is often used to cancel the mutual interference of two adjacent microwave reflection signals. However, in the traditional phase shifter design, for two feeders with the same electrical length, if a λ / 4 transmission line is added to one of them, the phases of the two signals can differ ...
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IPC IPC(8): H03H11/16H01P1/18
CPCH01P1/18H03H11/16
Inventor 王兰若李劲劲钟源钟青王雪深曹文会
Owner NAT INST OF METROLOGY CHINA