Ultra-wideband filter with notching function

An ultra-wideband filter and functional technology, applied in waveguide devices, electrical components, circuits, etc., can solve the problem of filter size increase, achieve the effect of reducing circuit size, flexible and diverse applications, and ensuring normal operation

Active Publication Date: 2014-10-15
NANTONG DUOQIAN NEW MATERIAL SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an ultra-wideband filter with a notch function, which solves the problem that the ultra-wideband filter in

Method used

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  • Ultra-wideband filter with notching function
  • Ultra-wideband filter with notching function
  • Ultra-wideband filter with notching function

Examples

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Example Embodiment

[0034] Example

[0035] refer to Figure 4 , the ultra-wideband filter with notch function of the present invention is applied to the receiver of the ultra-wideband communication system, the main structure of the receiver is, including the ultra-wideband antenna 1, the ultra-wideband antenna 1 passes through the (ultra-wideband low-noise) amplifier one 2. Amplifier two 3, ultra-wideband notch filter one 4, down-conversion circuit 5, ultra-wideband notch filter two 6, amplifier three 7, A / D conversion 11 are connected to the relevant channel 13; in addition, the reference crystal oscillator 8 passes through The frequency synthesizer 9 is connected with the down-conversion circuit 5 (another input end), and the amplifier three 7 is additionally connected with the AGC module 10; the relevant channel 13 is also connected with the microprocessor 12 and the memory 14 at the same time, and the microprocessor 12 and the memory 14 connected to each other.

[0036] The above-mentioned...

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PUM

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Abstract

The invention discloses an ultra-wideband filter with a notching function. The filter comprises a ring resonator, wherein two microstrip lines are symmetrically arranged on each of the two sides of an excircle of the ring resonator in a diameter direction; the two microstrip lines on each side are coupled in parallel; structural dimensions of the four microstrip lines are identical; a feeder line stretches between the two microstrip lines on each side; an open circuit branch is embedded into each feeder line; and the two open circuit branches stretch from feeder line ports to the ring resonator. According to the ultra-wideband notching filter, the notching frequency of the ultra-wideband filter is adjusted to meet different application demands by collocation selection of dimension parameters of the ring resonator, the interdigital pectinate microstrip lines, the feeder lines and the embedded open circuit branches according to different communication places and application requirements in practical application.

Description

technical field [0001] The invention belongs to the technical field of microwave microstrip filters, and relates to a filter with a notch function which is made of a microstrip line and works in an ultra-wideband frequency band, and relates to an ultra-wideband filter with a notch function. Background technique [0002] Ultra-wideband (UWB) technology is an emerging wireless communication technology in recent years. Since the US Federal Communications Commission (FCC) approved the frequency band from 3.1GHz to 10.6GHz for commercial communication in 2002, UWB communication technology It has received more and more attention. With the rapid development of ultra-wideband wireless communication technology, higher requirements have been put forward for ultra-wideband wireless communication electronic equipment. High reliability and miniaturization have become the key points for the development of ultra-wideband wireless communication systems. This is an inevitable trend, which re...

Claims

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Application Information

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IPC IPC(8): H01P1/203
Inventor 席晓莉师晓敏
Owner NANTONG DUOQIAN NEW MATERIAL SCI & TECH CO LTD
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