V3 Technology-ABox-28G

SDR-related Accessories

ABox-28G

24.5–29.5 GHz frequency coverage

8×8 scale phased array

Supports H/V dual polarization for MIMO application

800 MHz ultra-wide signal bandwidth

71 dB high transmit chain gain

2.5–5 GHz wideband IF compatibility

TDD external access with precise timing synchronization

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5G Millimeter-wave Phased Array Antenna

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Overview
Product Information
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Overview

Applications

· Wireless access

· Test and measurement

· Early warning/radar

· Cable TV access

· Other high-performance RF applications

ABox-28G is a highly integrated RF transceiver front-end tailored for 5G millimeter-wave research, phased array algorithm verification and signal relay applications.It integrates an 8×8 (64-element) large-scale phased array with single polarization and H/V dual polarization capabilities, ideal as a core component for 5G MIMO test systems.It covers RF frequency range of 24.5 GHz to 29.5 GHz, features wideband IF compatibility, and supports IF signal input and output from 2.5 GHz to 5 GHz.

Product Description

Technical Specifications

· RF Signal Frequency Band : 24.5~29.5GHz

· IF Signal Frequency Band : 2.5~5GHz

· Signal Bandwidth : 100/200/400/800MHz

Basic Parameters

· UDC Transmit Gain (EVM < 2.5%@IF_input=-13dBm) : 24dB

· UDC Receive Gain : 25dB

· Transmit Chain Gain (IF_input=-23dBm, EIRP=48dBm@single_beam) : 71dB

· Receive Chain Gain (Power_input=-65dBm@ANT, IF_output=0dBm) : 65dBm

· H/V Beamwidth : 12°

· Beam Switching Time : 200ns

· Scanning Antenna Gain θ=0°，Φ=0° : 21dBi

· Scanning Antenna Gain θ=±60°，Φ=±60° : 17dBi

· EIRP (θ=0°，Φ=0°) 256QAM/400MHz, EVM ≤ 3.5%, Single Polarization : 48dBm

· EIRP (θ=±60°，Φ=±60°) 256QAM/400MHz, EVM ≤ 3.5%, Single Polarization : 44dBm

· ACPR : -30dBm

· Receiving Sensitivity : -100/ 100MHz dBm

RF Specifications

· Array Scale : 8 x 8

· Supported Mode : TDD

· Polarization Mode : 0/90°(H/V)

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In terms of performance architecture, the ABox-28G delivers outstanding link specifications. It achieves 71 dB transmit gain and 65 dB receive gain. Combined with efficient beamforming algorithms, it enables precise signal coverage and spatial multiplexing.Adopting an all-metal enclosure and built-in dual-fan active heat dissipation system, the unit maintains excellent thermal stability even under a power consumption of 65 W.

Product Information

Interface schematic diagram of V3 ABox-28G
The ABox-28G can be seamlessly integrated with the YunSDR platform to build a complete millimeter-wave prototype system.

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Data Link: The SDR platform provides IF signals, which are fed into the ABox-28G via SMA interfaces for frequency conversion. Cooperative Control: Visual beam scheduling is supported through host PC GUI; alternatively, the GPIO interface of the SDR platform can connect to the control interface of ABox-28G for SPI communication, enabling configuration of TDD timing and beam direction. Timing Synchronization: External TDD pulse signal access is supported to align the timing between the phased array and system protocol stack.