An LTCC technology-based genome unit compact conformal array antenna

Abstract

The invention belongs to the technical field of antennas and provides an LTCC technology-based genome unit compact conformal array antenna. The invention mainly aims to solve the problem that the conventional circularly-polarized micro-strip patch array antennas fail to realize low profile, circular polarization, high gain and wide band at the same time. The antenna comprises a grounding metal layer, a lower layer dielectric substrate, a lower layer metal patch antenna, an upper dielectric substrate and an upper layer metal patch antenna, which are successively stacked from bottom to top; the lower layer metal patch antennal is formed from lower layer metal patch units in array arrangement; the upper layer metal patch antenna is formed from upper layer metal patch subarrays corresponding to the lower layer metal patch units; each upper layer metal patch subarray and the corresponding lower layer metal patch unit have coinciding centers and form a genome unit together. Under the limit of the same number of array numbers, the antenna is smaller in size, higher in gain, better in circular polarization performance and greater in frequency bandwidth, and is simple in structure and easy to process.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to a novel LTCC genome unit compact conformal array antenna. Background technique [0002] With the vigorous development of modern information technology and the new military revolution, future warfare will develop into a five-dimensional integration of landing, sea, air, space, and electricity. As an electromagnetic wave detection device, radar will play an increasingly important role on the future battlefield. As a part of the radar system to transmit and receive electromagnetic waves, the performance of the array antenna directly affects the accuracy of the radar detection results. Therefore, for the radar system, the design of the array antenna is particularly important. Array antennas have a variety of forms, and microstrip antennas have obvious advantages over other microwave antennas: small size, light weight, low profile, easy to conform to the carrier, easy to control the...

AI Technical Summary

Problems solved by technology

In terms of realizing the circular polarization of the microstrip patch antenna, the methods of multi-feed and patch angle cutting are commonly used at present, but the former increases the complexity of the antenna structure and reduces the gain of the antenna, and the latter is harmful to the patch Higher dimensional accuracy requirements for cut corners

The contradiction between circularly polarized microstrip patch array antenna and its low profile, circular polarization, high gain, and wide frequency band has not been well resolved.

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