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Ultra wide-band filter based on double minor matters loading harmonic oscillator

An ultra-wideband filter and resonator technology, applied in the filter field, can solve the problem of insufficient stopband insertion loss, etc., and achieve the effects of compact structure, improved squareness, and small size

Active Publication Date: 2013-04-10
广州桑瑞科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

We see that its passband is wide and flat, but the insertion loss of the stopband is not large enough, and there is a parasitic passband caused by half-wavelength repeatability.

Method used

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  • Ultra wide-band filter based on double minor matters loading harmonic oscillator
  • Ultra wide-band filter based on double minor matters loading harmonic oscillator
  • Ultra wide-band filter based on double minor matters loading harmonic oscillator

Examples

Experimental program
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Embodiment

[0030] Such as figure 1 As shown, it consists of a microstrip substrate, a front part, a back part and an input / output port; There are two input / output ports, namely input / output port 1 and input / output port 6.

[0031] Such as figure 2 As shown, the front part includes: a first uniform transmission line unit 2, a second uniform transmission line unit 5, a first parallel coupled feeder 3, a second parallel coupled feeder 4, a double stub loaded resonator 7, and a dielectric plate 8; The first uniform transmission line unit 2 and the second uniform transmission line unit 5 are respectively located at the left and right ends of the front and on the same horizontal line, the first input / output port 1 is connected to the first uniform transmission line 2, the second input\ The output port 6 is connected to the second uniform transmission line 5; the first parallel coupled feeder 3 and the second parallel coupled feeder 4 are connected through a double stub loaded resonator 7; the...

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PUM

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Abstract

The invention discloses an ultra wide-band filter based on double minor matters loading harmonic oscillator. The ultra wide-band filter based on double minor matters loading harmonic oscillator comprises a micro-strip substrate, a front part, a reverse part and an input\output port. The front part and reverse part are respectively located on the two sides of the micro-strip substrate. The reverse part is regarded as a metal earth plate of the filter. The input\output port has two ports which are respectively a first input\output port and a second input\output port. The front part comprises a first uniform transmission line unit, a second uniform transmission line unit, a first paralleled coupler feeder, a second coupler feeder, and a double minor matters loading harmonic oscillator. The ultra wide-band filter is compact in structure, small in size, low in cost, and good in speciality.

Description

technical field [0001] The invention relates to the technical field of filters, in particular to an ultra-wideband filter based on double-stub loaded resonators. Background technique [0002] Ultra-wideband (UWB) filters have a variety of applications. UWB pulse wireless transmission technology for civilian use (the military started its research as early as the 1970s) is a revolutionary wireless communication technology, which has a much higher communication rate and capacity than 3G communication technology, and its occupation The frequency band is very wide, and its system requires the use of ultra-wideband filters. Ultra-wideband anti-collision radar systems used in automobiles, ultra-wideband imaging systems for imaging, ultra-wideband RFID systems for warehousing, and modern communication signal optimization coverage and repeater systems, etc., also require the use of ultra-wideband filters. Ultra-wideband pulse radar systems in military electronic countermeasures als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203
Inventor 褚庆昕朱贺
Owner 广州桑瑞科技有限公司
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