Ultra-wideband double-compensation phase shifter
By adopting a double-compensation network structure in the ultra-wideband phase shifter, the frequency response change rate of the phase is tuned by the compensation effect of capacitors and inductors, the problem of bandwidth being dispersed in the prior art is solved, and efficient phase shifting under extremely wide bandwidth is achieved.
CN119543862APending Publication Date: 2025-02-28KUNSHAN HONGYONG MICROWAVE TECH CO LTD
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Patent Information
- Application Number
- CN202411591664.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-02-28
AI Technical Summary
Technical Problem
When existing ultra-wideband phase shifters realize full-band phase shift, they are affected by dispersion and have limited bandwidth, making it difficult to achieve ideal full-band phase shift.
Method used
The ultra-wideband double-compensated phase shifter is adopted. By using a capacitor-compensated-magnetic coupled capacitor full-pass network and an inductor-compensated-inductor full-pass network in the reference branch and the phase-shifted branch, the phase-response frequency change rate is tuned.
Benefits of technology
The phase shift under extremely wide bandwidth is achieved, which significantly slows down the phase frequency response change rate, expands the bandwidth of the phase shifter, and solves the problem of dispersion-limiting bandwidth.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses an ultra-wideband double-compensation type phase shifter, which comprises two one-to-two switches, and a reference state branch and a phase shift state branch which are connected between the two one-to-two switches, the reference state branch comprises a magnetic coupling inductor L1, a capacitor C2, a capacitor C3 and two compensation capacitors C1, the capacitor C2 is connected from the center of the magnetic coupling inductor L1 to the ground, and the capacitor C3 is connected from the center of the magnetic coupling inductor L1 to the ground. The capacitor C3 is connected with the magnetic coupling inductor L1 in parallel to form a magnetic coupling all-pass network, the two compensation capacitors C1 are symmetrically connected to the two sides of the magnetic coupling all-pass network in series, the phase shift state branch comprises an inductance type all-pass network and two compensation inductors L4, the inductance type all-pass network comprises an inductor L2, an inductor L3 and two capacitors C4, the inductor L3 is connected to the two capacitors C4 in series in parallel, and the compensation inductors L4 are connected to the two capacitors C4 in parallel. The inductor L2 is connected to the ground at the center of the two capacitors C4 connected in series, the two compensation inductors L4 are symmetrically connected to the two sides of the inductance type all-pass network in series, the compensation capacitors C1 and the compensation inductors L4 can compensate the phase, the phase frequency response change rate is slowed down, and phase shifting under the extremely wide bandwidth is achieved.
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