Microwave phase shifter

A microwave phase shifter and phase shifter technology, applied in waveguide devices, electrical components, circuits, etc., can solve problems such as difficult intensification and miniaturization, limitation, and small phase shift range

Inactive Publication Date: 2016-05-04
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Common microwave phase shifters are mostly implemented with transmission line structures such as waveguides and microstrip lines. ...

Method used

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiment is only a possible implementation of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] The invention provides a phase shifter, which can realize a wide phase adjustment range, and can realize good gain consistency in each phase state.

[0022] Overall structural block diagram of the present invention is as figure 1 As mentioned above, it includes an input stage amplifier, N composite left and right hand phase shifting units, and an output stage amplifier. The input stage amplifier and the output stage amplifier provide signal amplificat...

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Abstract

The invention discloses a phase shifter. The phase shifter is a novel circuit structure which realizes a phase shifting function by adopting a composite right and left handed transmission line unit structure. The phase shifter comprises an input stage amplifier, one or multiple composite right and left handed transmission line unit structures, and an output stage amplifier. The input stage amplifier matches an impedance at an input end with an impedance of each composite right and left handed transmission line unit structure and amplifies an signal; each right and left handed transmission line unit structure plays a role of signal phase shifting; and the output stage amplifier matches the impedance at the output end with the impedance of each composite right and left handed transmission line unit structure and amplifies the signal.

Description

technical field [0001] The invention relates to the field of integrated circuits, in particular to a microwave phase shifter circuit Background technique [0002] Microwave phase shifter is a very common device in the field of microwave and millimeter wave, and has a wide range of applications in communication, radar, space positioning and other systems. [0003] Common microwave phase shifters are mostly implemented by transmission line structures such as waveguides and microstrip lines. Usually, the structure is complex and the volume is large, so it is difficult to achieve compactness and miniaturization. Many restrictions. Contents of the invention [0004] The invention provides a phase shifter, which can realize a wide phase adjustment range, and can realize good gain consistency in each phase state. [0005] A phase shifter proposed by the present invention includes an input stage amplifier, N composite left and right hand phase shifting units (N≥1), and an output...

Claims

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Application Information

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IPC IPC(8): H01P1/18
CPCH01P1/182
Inventor 李秀萍李南冯魏巍朱华
Owner BEIJING UNIV OF POSTS & TELECOMM
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