4 dBi Circularly Polarized Ceramic Antenna for RFID Applications

A reliable antenna is an important part of any RFID system because it directly affects how efficiently radio signals are transmitted and received. For compact RFID readers and embedded devices, antenna size, polarization, frequency, gain, and installation flexibility all need to be considered carefully.

The 4 dBi circularly polarized ceramic antenna is designed for RFID applications operating at 915 MHz and 866.5 MHz. With a compact ceramic element measuring 35 × 35 × 4 mm and an overall antenna size of 40 × 40 mm, it provides a practical option for equipment where available installation space is limited.

Compact Design for Embedded RFID Devices

Space can be a major consideration when designing RFID readers, access devices, smart equipment, and other connected products. A large antenna may not be suitable for compact housings or embedded applications.

This ceramic antenna uses a compact structure that combines PCB and ceramic materials. The ceramic antenna measures only 35 × 35 × 4 mm, while the overall antenna size is 40 × 40 mm. This makes it easier to integrate into equipment with limited internal space.

The compact format can be useful for RFID hardware manufacturers looking for an antenna that provides consistent RF performance without requiring a large installation area.

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