Plug-and-Play Antenna Chip for Avionics and Communications Designers

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With the launch of the new active antenna beamforming chip the designers would be able to quickly replace bulky, mechanically steered antenna platforms with a compact, solid-state solution for phased array radar and communications systems. The ADAR1000 chip from Analog Devices simplifies design and significantly reduces the size, weight and power of phased array radar systems for defense, surveillance, air traffic control, communications and weather monitoring. For avionics designers, the chip enables flat-panel antenna arrays, which shrinks the profile of conventional radar systems and facilitates the design of smaller, lighter aircraft. This is a plug-and-play chip that allows designers with little or no RF experience to extend the performance and operating lifetime of their radar systems.

Four-channel transmitter and receiver antenna chip

The four channel active antenna beamforming chip replaces 12 discrete components needed for antenna phase-gain adjustments and digital controls. The IC supports time division duplexing (TDD) across the X and Ku bands. It includes an integrated T/R switch than can be used to select the common port as an input for transmit (Tx) or an output for receive (Rx). The four pairs of Tx and Rx channels have independently programmable gain and phase settings. It can be configured to directly control all aspects of external T/R module pulsing with minimal extra circuitry. All settings can be loaded into built-in memory for fast access to gain-phase states and T/R module settings. Also, it offers a scalable building block for fast implementation of active antenna phased arrays targeting next-generation radar and communications systems without the need for extensive third-party design support.

Beamforming Chip Product Features

The chip offers 8-GHz to 16-GHz frequency range with Half-duplex TDD for Tx and Rx.Single-pin Tx/Rx control has been provided. It comes with a 360-degree phase control with less than 2.8-degree phase resolution. Also, company claims 31-dB gain control with 0.5-dB resolution. There is also on-chip memory for pre-stored beam positions. It also supports low-power modes with four-wire SPI interface.

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