Dual-channel communication rectification antenna with reconfigurable frequency

Abstract

The invention belongs to the field of microwave energy delivery, relates to a communication rectification antenna, and specifically relates to a dual-channel communication rectification antenna with a reconfigurable frequency. The antenna comprises a dual-port frequency reconfigurable dipole antenna and a rectification circuit; the antenna is composed of a substrate, a front-surface structure and a back-surface structure; the back-surface structure comprises a third metal arm, a broadband Balun structure and a floor; the front-surface structure comprises a first metal arm, a second metal arm and a feed network, the feed network is composed of a feed branch, a reconfigurable branch and a bias circuit, the feed branch is connected with a port 1, the reconfigurable branch is connected with a port 2, the feed branch is provided with a first blocking capacitor, and the reconfigurable branch is provided with an adjustable device; and the rectification circuit is connected with any one port of the dual-port frequency reconfigurable dipole antenna. According to the invention, the communication rectification antenna is designed by use of a reconfigurable technology, the adjustable device is arranged in the structure, through adjusting the state of the adjustable device, dual-channel communication and energy delivery functions of the communication rectification antenna under the same frequency range or different frequency ranges are realized.

Description

technical field [0001] The invention belongs to the field of microwave energy transmission, and relates to a communication rectifying antenna, in particular to a frequency reconfigurable dual-channel communication rectifying antenna. Background technique [0002] Microwave energy transmission technology, that is, the technology in which electric energy is not transmitted through power lines, but wirelessly transmitted by microwaves. The daily life and work of modern people are increasingly inseparable from wireless communication. People hope to communicate anytime and anywhere, but the normal use of wireless devices cannot be separated from continuous power supply. A large number of portable wireless electronic devices have brought great convenience to people's life and work, but the continuous power supply cannot be satisfied in some cases. For example, implantable medical devices can bring great convenience to patients. These medical devices need to exchange information w...

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Problems solved by technology

For example, the document: "Dual-Fed Antenna for Wireless Power Transmission and Data Communication," (R. Dehbashi, K. Forooraghi, and Z. Atlasbaf, IEEE Antennas and Propagation Society International Symposium, pp. 2201-2204, 2006.) discloses a dual-port multifunctional antenna, such as image 3 As shown, one port of the antenna is used for communication, and the other port is used for microwave energy transmission, and when the two ports receive signals, the antenna works at 2.4GHz; but the working frequency band of the antenna is narrow, and at the same time, when the two ports work , the isolation between the two channels is very low, only 1.5dB, so that the two ports still cannot work well at the same time

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