Antenna unit power allocation method, device and antenna based on subarray division

Abstract

The invention discloses an antenna unit power distribution method, device and antenna based on sub-array division. The method includes: 8 sub-arrays, each sub-array is divided into 8 small sub-arrays; every 2 antenna units in the small sub-arrays are connected in parallel, After parallel connection, it is connected in parallel with the other two parallel-connected antenna units to form two first-level power sub-unit groups, forming two first-level power distribution points; two first-level power sub-unit groups are connected in parallel to form a second-level power sub-unit group, 8 secondary power distribution points are formed; 2 secondary power subunit groups are connected in parallel to form a tertiary power subunit group, forming 4 tertiary power distribution points; the power division ratio of 14 power distribution points is iteratively calculated, After reaching the set requirements, it is applied to the polarized feed network of the dual-polarized antenna. Adopting the above technical solution greatly reduces the number of power distribution weighted values ​​that need to be calculated, simplifies the structure of the antenna feeding network, reduces the workload of research and development, shortens the product development cycle, reduces the difficulty of antenna production, and widens the bandwidth of the antenna.

Description

Antenna unit power allocation method, device and antenna based on sub-array division technical field The present invention relates to the technical field of antenna design, in particular to a kind of antenna unit power distribution based on sub-array division Methods, devices and antennas. Background technique [0002] With the rapid development of antenna technology, the application of antennas in military and civilian products is also increasing, which has a great impact on product cost. And the requirements of the development cycle are getting higher and higher. [0003] The radar antenna shared by sending and receiving can adopt a dual-polarization form, and the two polarizations are used for transmitting and receiving respectively, and at the same time, In order to suppress clutter interference during reception, the antenna is required to have low side lobe characteristics. The prior art is used to design low sidelobe power distribution weighted schemes, such as T...

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Problems solved by technology

[0004] The weighted schemes used to design low sidelobe power allocation in the prior art, such as Taylor distribution, Chebyshev distribution and other technologies, need to perform power allocation calculations for each antenna element in the antenna array, because the antenna elements in the antenna array The quantity is very large, therefore, the weighted value of power distribution that needs to be calculated is also very large, and the structure of the final antenna feeding network is complicated, thereby increasing the workload of research and development, prolonging the product development cycle, and increasing the difficulty of antenna production

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