Rfid multi-polarization antenna device
By employing multi-polarization antenna design and time-division polarization jitter technology, the high cost and low gain issues of existing UHF RFID antennas are resolved, thereby improving tag activation rates and making them suitable for diverse consumer applications.
CN116247418BActive Publication Date: 2026-06-26CHONGQING YUXIN MICRO INFORMATION TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING YUXIN MICRO INFORMATION TECH CO LTD
- Filing Date
- 2023-02-24
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
Existing UHF RFID antennas suffer from problems such as high price, small size and low gain, uneven polarization direction, and low tag activation rate.
Method used
By employing several linearly polarized antennas and combining time-division polarization and time-division jitter design with RF switch switching connection, a multi-polarized antenna cluster is formed to achieve a high-gain UHF RFID antenna.
Benefits of technology
It increases the probability of tag activation, reduces costs, and does not affect inventory storage speed, making it suitable for diverse consumer application scenarios.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116247418B_ABST
Abstract
The application discloses an RFID multi-polarization antenna device, which comprises a master control module and an antenna cluster. The master control module comprises a UHF RFID reader-writer and a radio frequency switch. The UHF RFID reader-writer is connected with antennas in the antenna cluster through the radio frequency switch. The radio frequency switch switches the connected antennas according to a set time. The antenna cluster comprises at least four polarization antennas, including a first polarization antenna and a third polarization antenna with two horizontally polarized directions arranged oppositely, and a second polarization antenna and a fourth polarization antenna with two vertically polarized directions arranged oppositely, thereby forming a dual-polarization antenna cluster. The application realizes a high-gain multi-polarization antenna through low-cost linear polarization antennas, and improves the label activation probability through time-sharing jitter of antennas with the same polarization direction.
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