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Three-frequency three-function time-modulated and non-time-modulated reconfigurable common-aperture antenna array

A non-time modulation and time modulation technology, which is applied in antenna arrays, antennas, electrical components, etc., can solve the problems of antenna system time modulation or single direction backtracking, and meet the requirements of low cost, low complexity, and reduced antenna space Effect

Inactive Publication Date: 2018-03-09
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen from the above that the existing antenna system can only realize a single function of time modulation or direction traceability, and cannot realize the three functions of time modulation, direction traceback and time modulation direction traceback in the same antenna array.

Method used

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  • Three-frequency three-function time-modulated and non-time-modulated reconfigurable common-aperture antenna array
  • Three-frequency three-function time-modulated and non-time-modulated reconfigurable common-aperture antenna array
  • Three-frequency three-function time-modulated and non-time-modulated reconfigurable common-aperture antenna array

Examples

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Embodiment

[0033] combine figure 1, a three-frequency three-function time-modulated and non-time-modulated reconfigurable common-aperture antenna array, including four antenna units 1, four single-pole single-throw switches 2, a switch control circuit 3, three three-channel selectors 4, Four duplexers 5, four phase conjugate mixers 6, four phase shifters 7, a four-way power divider 8, a four-way power combiner 9, a local oscillator source 10 and a receiver 11 ;

[0034] The four antenna units are respectively connected to four SPST switches, the two SPST switches in the middle of the array are connected to the two input terminals of a three-channel selector, and the two output terminals of the three-channel selector are respectively connected to the other two three-channel selectors. One input of the channel selector is connected, and the other input of the two three-channel selectors is connected to two single-pole single-throw switches outside the array. The four outputs of the two th...

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Abstract

The invention discloses a three-frequency three-function time-modulated and non-time-modulated reconfigurable common-aperture antenna array, which includes 2N antenna units, 2N single-pole single-throw switches, a switch control circuit, a three-channel selector, and 2N Duplexer, 2N phase conjugate mixers, 2N phase shifters, a 2N-way power divider, a 2N-way power combiner, a local oscillator source and a receiver, N is a positive integer; switch control circuit Controls the periodic on-off of all SPST switches. The invention not only satisfies the requirements of multiple working frequency bands of the antenna system, but also reduces the requirements of multiple array antennas on the antenna space, and has the advantages of simple reconstruction, low complexity and high precision.

Description

technical field [0001] The invention belongs to the technical field of antenna engineering, in particular to a three-frequency three-function time-modulated and non-time-modulated reconfigurable common-aperture antenna array. Background technique [0002] With the rapid development of communication and radar technology, various electronic systems have put forward more and more stringent requirements for antenna systems, making antenna systems with multiple functions, high performance, low cost and miniaturization more and more attention. Time-modulated antenna array refers to the introduction of time variables in the design of conventional antenna arrays. The high-speed radio frequency switches connected to the array elements are used to control the working status of each antenna unit according to the predetermined switching sequence, so that the aperture size of the antenna array changes with time. Change, that is, have time modulation characteristics. The time-modulated a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/00H01Q23/00
Inventor 姚阿敏吴文方大纲
Owner NANJING UNIV OF SCI & TECH
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