Antenna with digital control of radiation characteristics

By designing an antenna with digitally adjustable radiation characteristics and employing technologies such as electromagnetic metasurfaces and digital phase-controlled phase shifters, independent adjustment of beam and polarization has been achieved, solving the problems of large size and high cost of existing antennas. This makes the antenna suitable for smart IoT and 5G/6G systems.

CN115995686BActive Publication Date: 2026-07-07CHENGDU PINNACLE MICROWAVE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU PINNACLE MICROWAVE CO LTD
Filing Date
2023-03-03
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing digital control antennas are difficult to achieve independent adjustment of beam and polarization simultaneously, and they also suffer from problems such as large size, high cost, and limited radiation controllability.

Method used

An antenna with digitally adjustable radiation characteristics was designed. It employs an electromagnetic metasurface, a metal ground plane, and an F4BM dielectric substrate. Combined with a digital phase control phase shifter, a digitally polarized dual-slot feed structure, and a PIN diode DC bias circuit, it achieves independent adjustment of polarization and phase. Through a half-wavelength phase delay microstrip line and a dual-slot feed structure, the antenna is miniaturized and reduced in cost.

Benefits of technology

It enables flexible modulation of beam switching scanning and radiated waves, reduces antenna size and cost, expands multi-beam dynamic coverage capabilities, and is suitable for smart IoT and 5G/6G systems.

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Abstract

The application discloses an antenna with digital regulation of radiation characteristics, uses a medium resonator loaded with an electromagnetic super surface as a radiator, introduces a double-slot feed structure and a half-wavelength phase delay microstrip line to complete polarization and phase reconfiguration, and further realizes digital discretization of polarization and phase. The application can flexibly control the radiation state of electromagnetic waves by selecting different coding sequences. Meanwhile, the radiation characteristic digital regulation array antenna formed based on the antenna structure arrangement of the application has the advantages of small volume, low cost, wide bandwidth, multiple functions, multi-beam dynamic scanning and high design freedom, and can realize flexible beam and polarization conversion, and can also perform digital modulation on the radiation wave by controlling the coding sequence of each element, and is suitable for future beam-controllable intelligent communication or direct signal modulation communication application.
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