Array element of signal control array and signal control array

A signal control and array element technology, applied in the field of antennas, can solve the problem that the antenna array cannot meet the requirements of high transmission energy and low signal interception at the same time.

Inactive Publication Date: 2017-07-04
SHANGHAI ENG CENT FOR MICROSATELLITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem solved by the present invention is that the existing antenna array cannot meet the requirements of high emission energy and low signa

Method used

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  • Array element of signal control array and signal control array
  • Array element of signal control array and signal control array
  • Array element of signal control array and signal control array

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Embodiment Construction

[0020] Hereinafter, the spirit and essence of the present invention will be further elaborated in conjunction with the drawings and embodiments.

[0021] It can be seen from the background technology that the existing phased array array maintains a constant transmission beam pointing during the transmission pulse time, so the signal is easy to be detected and interfered, and the frequency control array can solve the problem of being easily detected and interfered, but because its antenna The radiation pattern is time-varying and causes loss of transmitted energy. In view of the above problems, the present invention provides a signal control array element and a signal control array. The amplitude, frequency and phase of the signal control array element provided by the present invention can be adjusted. The signal control array combines the advantages of the existing phased array and frequency control array, and overcomes the existing technical defects.

[0022] In this embodim...

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Abstract

The invention discloses an array element of a signal control array and the signal control array. The transmission signals of the array element are as shown in the specification, wherein Ak is a weighted value for reducing antenna beam minor lobe or resisting interference, f0 is initial frequency, k is the serial number of the array element, delta f is frequency shift, t is emission pulse width, M is an index, d is the space between the array elements, alpha 0 is beam pointing, lambda 0 is equal to c/f0, and c is velocity of light.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a signal control array element and a signal control array. Background technique [0002] The invention of Phased Array technology has a history of more than 100 years. By adjusting the phase or delay of each array element signal, the phased array can freely realize the spatial scanning of the beam without rotating the antenna, so it is widely used in radar, communication, broadcasting, radio astronomy, meteorology and other fields. However, the phased array maintains a constant transmit beam pointing during the transmit pulse time, which makes unwanted signals such as clutter and interference on the phased array transmit beam pointing to be easily received by the phased array, resulting in It is easily detected and jammed. [0003] By adjusting the frequency of each array element signal, a Frequency Diverse Array (Frequency Diverse Array, also translated as a frequency diversity array) ...

Claims

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Application Information

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IPC IPC(8): H01Q21/08
CPCH01Q21/08
Inventor 郭汝江倪迎红刘会杰
Owner SHANGHAI ENG CENT FOR MICROSATELLITES
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