Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and arrangement for generating cyclic pulses

A cyclic pulse and equipment technology, applied in delay line pulse generation, electrical components, etc., can solve problems such as easy generation, complex working principle of Gilbert multipliers, etc., and achieve the effect of small changes and stable cyclic pulses

Inactive Publication Date: 2009-09-16
VIVO MOBILE COMM CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The working principle of Gilbert multiplier is complex and thus prone to problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and arrangement for generating cyclic pulses
  • Method and arrangement for generating cyclic pulses
  • Method and arrangement for generating cyclic pulses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The provided solution can be applied in a wide range of technical fields, such as UWB radio, spread spectrum applications, radar systems, imaging applications for viewing through walls, medical applications for examining tumors or organs, etc., but not limited thereto.

[0020] Referring to Figure 1, analyze the main parts of a UWB radio transmitter as an example. Input a train of unipolar pulses into the current device. A unipolar pulse, whose amplitude has only one sign (ie, the amplitude is a non-negative or non-positive value), can be a clock pulse. The pulse and the reverse pulse are fed into a pulse forming circuit 102 which generates pulses for the first differential pair 106 . The pulse circuit 102 is a filter that filters the pulse shape, a Gaussian pulse is often the desired pulse shape. The pulse forming circuit 102 outputs unipolar pulses of opposite polarity relative to each other, and the pulses are fed to the input of the first differential pair 106 . ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method and an arrangement for generating cyclic pulses. A first differential pair includes an input for a first unipolar pulse, and a second input for a second unipolar pulse, the first unipolar pulse and the second unipolar pulse having inversed polarities with respect to each other. The first unipolar pulse and the second unipolar pulse are delayed in a delaying means, and a second differential pair includes an input for the first delayed unipolar pulse, and a second input for the second delayed unipolar pulse. The arrangement is configured to form a cyclic pulse by combining an output signal relating to the first unipolar pulse of the first differential pair with an output signal relating to the second unipolar pulse of the second differential pair.

Description

technical field [0001] The present invention relates to methods and apparatus for generating cyclic pulses. Background technique [0002] Cyclic pulses are required in many technical fields, for example in ultra-wideband technology (UWB). Cyclic pulses have positive and negative amplitudes and can be bipolar pulses, such as single cycle or pulses with multiple cycles. Cyclic pulses can be generated in a variety of ways. Transistors operating in avalanche mode produce single-cycle pulses, but since each avalanche breakdown does not occur in the same way, and because it is sensitive to temperature and other environmental changes, the correlation of the pulses is too low. This scheme is also sensitive to noise and requires a high operating voltage, which hinders its application in portable devices. [0003] It is also possible to generate single-cycle pulses by means of transmission lines. In this scheme, a unipolar pulse is split into two transmission lines. The pulses ex...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H03K3/86H03B28/00
CPCH03B28/00
Inventor 萨卡利·缇尤拉涅米
Owner VIVO MOBILE COMM CO LTD