Microstrip switch type phase shifter and phase shifting module using same

A phase shifter and switch type technology, applied in the microwave field, can solve the problems of low cost and high cost of communication equipment, and achieve the effects of easy manufacture, simple structure and high phase shift accuracy.

Active Publication Date: 2016-02-24
SOI MICRO CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] 3. Low cost. A large number of phase shifters are required in the phased array transceiver. If the price of the phase...

Method used

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  • Microstrip switch type phase shifter and phase shifting module using same
  • Microstrip switch type phase shifter and phase shifting module using same
  • Microstrip switch type phase shifter and phase shifting module using same

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Embodiment Construction

[0021] In the microstrip switch-type phase shifter of the present invention, the required relative phase shift can be obtained between different outputs of the phase shifter by selecting different signal paths through the switch.

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0023] In a first exemplary embodiment of the present invention, a microstrip switch type phase shifter for millimeter wave mobile communication is provided. Such as figure 1 As shown, the microstrip switch-type phase shifter in this embodiment includes: a first path selection switch S1, a second path selection switch S2, a reference branch circuit and a phase shift branch circuit. Wherein, the first path selection switch S1 and the second path selection switch S2 cooperate to select one of th...

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Abstract

The invention provides a microstrip switch type phase shifter and a phase shifting module using the same. The microstrip switch type phase shifter comprises a reference branch circuit, a phase shifting branch circuit, a first path selection switch and a second path selection switch, wherein the reference branch circuit comprises a first microstrip transmission line; the phase shifting branch circuit comprises a second microstrip transmission line and a third microstrip transmission line which are connected in series, and a fourth microstrip transmission line connected between a node between the second and third microstrip transmission lines and the ground level; the front end of the first path selection switch is connected to a signal input end, the rear end of the second path selection switch is connected to a signal output end, and the first and second path selection switches are simultaneously connected to the reference branch circuit and the phase shifting branch circuit under control. By adopting continuous microstrip lines and a simple topological structure, the phase shifter and the phase shifting module reduce parasitical parameters caused by discontinuous microstrip lines, can be applied to high-frequency scenarios, meanwhile, have very flat phase shifting characteristic nearby center frequency by simulation and experimental proof, and have high phase shifting precision.

Description

technical field [0001] The invention relates to the field of microwave technology, in particular to a microstrip switch type phase shifter and a phase shifting module using the same. Background technique [0002] With the popularization of a large number of smart terminals such as smartphones and tablet computers, the demand for high-speed mobile data services is increasing day by day. With the current growth rate of demand for communication capacity, it is estimated that the total mobile data volume will increase by a thousand times around 2020, which poses a serious challenge to the next generation of mobile communication systems. Compared with the increasingly depleted spectrum below 3GHz, the millimeter wave frequency band has very rich spectrum resources, which can meet the needs of future high-speed broadband mobile communications. In addition, in the millimeter wave frequency band, space division multiple access and beam combination can be combined with time division...

Claims

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Application Information

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IPC IPC(8): H01P1/18
CPCH01P1/184
Inventor 李志强黄健欧张海英
Owner SOI MICRO CO LTD
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