Dual-mode siw tunable filter based on reconfigurable electromagnetic boundary

An electromagnetic boundary and filter technology, which is applied to waveguide devices, circuits, electrical components, etc., can solve the problems of bulky and inflexible adjustment of adjustable filters, and achieve flexible and convenient adjustment, simple structure, and good selectivity Effect

Active Publication Date: 2021-11-05
PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the adjustable filter is bulky and the adjustment is not flexible enough

Method used

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  • Dual-mode siw tunable filter based on reconfigurable electromagnetic boundary
  • Dual-mode siw tunable filter based on reconfigurable electromagnetic boundary
  • Dual-mode siw tunable filter based on reconfigurable electromagnetic boundary

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

[0028] Such as figure 2 As shown, the dual-mode SIW tunable filter based on the reconfigurable electromagnetic boundary of this embodiment includes a square substrate integrated waveguide dual-mode resonator, multiple PIN diodes and input and output feeders, and the square substrate integrated waveguide dual The axisymmetric position of the mode reson...

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Abstract

The invention belongs to the technical field of microwave communication equipment, and particularly relates to a dual-mode SIW tunable filter based on reconfigurable electromagnetic boundaries, which includes a square substrate integrated waveguide dual-mode resonator, multiple PIN diodes and input and output feeders; The axisymmetric position of the square substrate integrated waveguide dual-mode resonator is added with a perturbation slot, and the main mode TE is used 101 modulus and the first higher order modulus TE 102 The mode forms the passband of the filter; PIN diodes are loaded around the square substrate integrated waveguide dual-mode resonator to control the free switching of the electrical boundary and the magnetic boundary; the input and output feeders are connected with the square substrate integrated waveguide dual-mode resonator connected. The present invention proposes the idea of ​​using the on-off of the PIN diode to realize the reconfigurable electromagnetic boundary, realizes the adjustable center frequency and keeps the absolute bandwidth constant, and has good selectivity and out-of-band suppression level in the entire center frequency adjustment range. The whole filter circuit has a simple structure and is flexible and convenient to adjust.

Description

technical field [0001] The invention belongs to the technical field of microwave communication equipment, in particular to a dual-mode SIW tunable filter based on a reconfigurable electromagnetic boundary. Background technique [0002] RF front-end circuits are widely and deeply used in radio systems such as wireless communication, satellite communication, short-wave communication, radar and electronic countermeasures. With the rapid development of the global radio system, radio frequency circuits are advancing in the direction of miniaturization, integration, and low cost. In order to meet this development trend, multi-band multi-mode systems and devices are rapidly developed. In multi-frequency multi-mode systems and devices, many filters with different operating frequency bands and modes are required to realize signal selection, and there is a problem of mutual interference between different signal channels. A single non-tunable filter can no longer meet the needs of su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/212
CPCH01P1/212
Inventor 周东方王显张德伟王月吕大龙张毅刘庆邓海林付宇璠唐敏张俊杰卞晨阁杨红潘晨清马壮
Owner PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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