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Simple ultra-broadband receiver circuit

An ultra-wideband receiver and circuit technology, applied in the direction of electrical components, transmission systems, etc., can solve the problems of increasing the receiving antenna structure, outputting error information, and the existence of noise, so as to improve the signal-to-noise ratio, reduce complexity, and reduce size Effect

Active Publication Date: 2009-12-23
江苏北方湖光光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the UWB receiver circuit structure is a differential configuration, and the positive and negative inputs are respectively connected to their respective antennas. In this way, the number of receiving antennas is increase

Method used

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  • Simple ultra-broadband receiver circuit
  • Simple ultra-broadband receiver circuit
  • Simple ultra-broadband receiver circuit

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Embodiment Construction

[0014] The present invention will be further described below with reference to the drawings and embodiments.

[0015] The present invention is a single-ended receiver circuit, only one input is needed, such as figure 2 As shown, it includes a sampling accumulation circuit, a filter circuit, an amplifying circuit and a secondary amplifying circuit connected in sequence.

[0016] Such as image 3 As shown, the input of the ultra-bandwidth receiver is sequentially connected to the positive input terminal of the first amplifier A1 through the first capacitor C1 and the first resistor R1 via the coaxial cable; the node between the first capacitor C1 and the input signal passes through the first matching The resistor RT1 is grounded; the first capacitor C1 forms a signal integrator, and the discharge time of the first capacitor C1 is determined by the current provided by the second resistor R2; the second resistor R2 is connected to the positive input terminal of the first amplifier A1 ...

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Abstract

The invention relates to an ultra-broadband receiver circuit, in particular to an ultra-broadband receiver circuit with a simple structure. The ultra-broadband receiver circuit comprises a sample accumulating circuit, a filtering circuit, an amplifying circuit and a secondary amplifying circuit, which are sequentially connected. The ultra-broadband receiver circuit has the advantages that only one-way input is needed and only one antenna can be used so that the complexity of the system, the size of the whole system and simultaneously the production cost are all reduced; and an extra-low-pass filter is added in a single-ended receiver and can provide extra-low cut-off frequency and sharp stopband attenuation to filter off unneeded noise signals, thereby greatly improving the signal-to-noise ratio of a receiver.

Description

Technical field [0001] The invention relates to an ultra-wideband receiver circuit, in particular to an ultra-wideband receiver circuit with a simple structure. Background technique [0002] The UWB receiving system has a large absolute bandwidth. It has some new technical problems in the target echo model, target detection, clutter suppression method, signal processing, system composition, etc. The conventional processing process is to sequentially perform the UWB response Wave signal is amplified and filtered, sampling, analog-to-digital conversion, digital signal processing, and terminal processing. The design of such an ultra-wideband receiver is difficult, the system is complicated, and the cost is high. In some simple handheld detection equipment, reasonable cost and volume control are the two key points for the practicality of the system. Such as figure 1 As shown, the circuit structure of an ultra-wideband receiver with a differential configuration, the positive and nega...

Claims

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Application Information

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IPC IPC(8): H04B1/69H04B1/10H04B1/7163
Inventor 雷雨婷
Owner 江苏北方湖光光电有限公司