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T-shaped grooved triangular patch dual-mode micro-strip band pass filter

A technology of triangle and filter, applied in the field of filter, to achieve the effect of excellent performance

Inactive Publication Date: 2011-05-25
SHANGHAI MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many open problems in optimizing the size reduction of circuits containing resonators, such as RF filters and oscillators

Method used

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  • T-shaped grooved triangular patch dual-mode micro-strip band pass filter
  • T-shaped grooved triangular patch dual-mode micro-strip band pass filter

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Embodiment Construction

[0010] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0011] figure 1 A schematic diagram of the geometric structure of the T-shaped slotted triangular patch dual-mode microstrip bandpass filter provided by the present invention. The filter includes: a triangular patch 1, the triangular patch 1 is an isosceles triangle, an inverted "T"-shaped slot 2 is opened in the middle of the triangular patch 1, and two symmetrical slots are opened on the bottom of the triangular patch 1. Rectangular slots 3 , two rectangular slots 3 are provided with feeders 4 connected to the triangular patches 1 .

[0012] The present invention proposes a brand-new microstrip bandpass filter topology, which is proved by Maxwell's equations. For actual situations, it is difficult or impossible to prove theoretically by Maxw...

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Abstract

The invention relates to a T-shaped grooved triangular patch dual-mode micro-strip band pass filter. The filter is characterized by comprising a triangular patch (1), wherein the triangular patch (1) is of an isosceles triangle; the middle part of the triangular patch (1) is provided with an inverse 'T'-shaped groove (2); the bottom edge of the triangular patch (1) is symmetrically provided with two rectangular grooves (3); and feeder lines (4) connected with the triangular patch (1) are arranged in the two rectangular grooves (3). The T-shaped grooved triangular patch dual-mode micro-strip band pass filter provided by the invention changes the conventional equilateral triangle into the isosceles triangle and is provided with the 'T'-shaped groove, so the performance of the micro-strip band pass filter is superior to that of the band pass filters of other shapes.

Description

technical field [0001] The invention relates to a filter, in particular to a T-shaped slotted triangular patch dual-mode microstrip bandpass filter with simple structure, easy processing and convenient operation. Background technique [0002] From the perspective of the development of telecommunications, filters have always played an important role in microwave circuits, using more passive components, and have made continuous progress with the development of communication technology. From a practical point of view, miniaturization is an important research topic for all handheld electronic devices, such as portable mobile phones. In the radio frequency part, although the emergence of monolithic microwave integrated circuits (MMIC) indicates that the miniaturization of radio frequency active circuits such as amplifiers, modulators, and frequency converters is becoming more and more possible. However, there are many open problems in optimizing the size reduction of circuits co...

Claims

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Application Information

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IPC IPC(8): H01P1/203
Inventor 张友俊高广颖王伟
Owner SHANGHAI MARITIME UNIVERSITY
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