Low-cost ZigBee antennas from CTi offers multiple configuration options

CTi Ltd, the specialist antenna manufacturer, has launched two new series of low-cost ZigBee antennas which provide designers with a wide choice of configuration options. Both series of antennas are suitable for use with any IEEE 802.15.4 standard 2.4 GHz ZigBee wireless system, and can accommodate vertically and horizontally polarised signals.

Typical ZigBee wireless applications include environmental monitoring and control in homes and buildings, and low-speed data acquisition from remote sensors in industrial process control systems.

The CTI-SB series of stubby ZigBee antennas comprises three models, with a choice of straight and right-angle SMA male and SMA male RS connectors. For applications that demand increased signal strength, the slightly longer CTI-RA series of rubber ZigBee antennas provide a gain of up to 9 dBi. These antennas employ co-linear elements – contained within a robust, semi-flexible rubber housing – to maximise RF efficiency, and feature an integral swivel joint to facilitate orientation. The CTI-RA series offers a choice of SMA male RS and TNC male RS connectors.

For designers of ZigBee systems intended for operation in the 868 MHz European or 915 MHz American ISM bands, CTi has a large selection of embedded and peripheral GSM antennas that operate at these frequencies. The company also offers a range of adaptor cables which simplify system integration significantly; they are particularly useful for connecting the type of sub-miniature U.FL or W.FL connectors commonly used on preassembled ZigBee modules to external antenna.

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