Ku band transmit-receive co-caliber multi-layer printed antenna

Abstract

The invention discloses a Ku band transmit-receive co-caliber multi-layer printed antenna which is characterized by including, from top to bottom, a radiation patch array and emission feed network layer provided with a radiation patch array and an emission feed network, a first dielectric layer, a metal formation, a second dielectric layer, a receiving feed network layer provided with a receiving feed network, a third dielectric layer, a meta ground connection support layer, a fourth dielectric layer, and an amplifying circuit layer provided with a receiving amplifying circuit and an emitting amplifying circuit; the emitting amplifying circuit is connected with the emission feed network, and the receiving amplifying circuit is connected with the receiving feed network. The Ku band transmit-receive co-caliber multi-layer printed antenna has the advantages of compact microstrip antenna structure, small volume, light weight, and the like, a low noise amplifier and power amplifier are integrated in the back side of the antenna, feeder loss between the low noise amplifier and power amplifier and the antenna is reduced, and the complete machine quality factor and efficiency can be improved. At the same time, the whole circuit structure adopts a multilayer printing technology, and is simple in process and low in cost.

Description

technical field [0001] The invention relates to an antenna, in particular to a Ku-band transmitting and receiving common-aperture multi-layer printed antenna, and the invention belongs to the technical field of antennas. Background technique [0002] With the development of Ku-band satellite communication and the increasing demand for communication information capacity, the current Ku-band satellite communication needs to share the aperture of the transmitting and receiving antennas to improve the efficiency of the aperture. At the same time, in order to reduce the interference of the transmitted signal on the receiving channel, there must be a high degree of isolation between the transmitting and receiving frequency bands. Modern satellite communication systems require antennas to be light in weight and low in profile, so the common-aperture antenna for transmitting and receiving in the form of microstrip has become an important trend in the development of satellite communi...

AI Technical Summary

Problems solved by technology

[0003] Norbahiah Misran and others in the article "Design of a Compact Dual Band Microstrip Antenna for Ku-Band Application" (a compact Ku-band dual-band microstrip antenna design) (published at 2009 International Conference on Electrical Engineering and Informatics, 5-7 August 2009, Selangor, Malaysia, 2009 International Conference on Electronic Engineering and Informatics, August 5-7, 2009, Selangor, Malaysia) and T. Nguyen Thi et al. in Dual-band circularly-polarized Spidron fractal microstrip "patch antenna for Ku-band satellite communication applications" (dual-frequency circularly polarized fractal microstrip patch antenna applied to Ku-band satellite communication) (published in ELECTRONICS LETTERS 28th March 2013 Vol. 49 No. 7, Electronic Letters, 2013 March 28, 2010, Vol. 49, No. 7) respectively proposed two types of microstrip antennas that share the radiating patch by transmitting and receiving to achieve the purpose of aperture sharing, but the transmitting and receiving feeds on the radiating patch pass through the same port Completed, so the antenna itself does not have the capability of transmitting and receiving isolation, and a duplexer with strong suppression capability needs to be added at the back end of the antenna, which will increase the cost and complexity of the back end

[0004] In the article "Ku-band Dual-frequency Orthogonal Polarization Microstrip Array Antenna" (published in Journal of Chinese Academy of Electronic Sciences, Vol.7, No.6), Li Wenjing and others improved the transmission and reception by separating the transmission and reception feeds into different circuit layers. Isolation, but the antenna not only increases the parasitic patch to expand the antenna bandwidth, but also the excitation of the lower feed network to the upper radiation patch is realized through the probe connection, so each patch needs a probe, increasing process complexity

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