2.3-2.4 GHz 8-Element Active Phased-Array Antenna Dan DePardo
INFORMATION & TELECOMMUNICATION TECHNOLOGY CENTER
2.3-2.4 GHz 8-Element Active Phased-Array Antenna System Block Diagram
Project Objective Develop a mobile, electronically steered, phased-array antenna prototype with sufficient RF signal gain and beam steering capability to track and receive data from a distant airborne transmitter. Additional design requirements included: • Minimum footprint • Mobile system DC power constraints • Extremely short project timeline (< 6 Months)
INFORMATION & TELECOMMUNICATION TECHNOLOGY CENTER
2.3-2.4 GHz 8-Element Active Phased-Array Antenna Antenna Element Printed Circuit Board 3rd Order 2.3-2.4 GHz Bandpass Filter
Patch Antenna Element Input
Output Amplifier
Variable Attenuator
Low Noise Amplifier 1 Variable Phase Shifters
5th Order 2.3-2.4 GHz Bandpass Filter Low Noise Amplifier 2
INFORMATION & TELECOMMUNICATION TECHNOLOGY CENTER
2.3-2.4 GHz 8-Element Active Phased-Array Antenna Prototype Hardware
INFORMATION & TELECOMMUNICATION TECHNOLOGY CENTER
2.3-2.4 GHz 8-Element Active Phased-Array Antenna Radiation Pattern Steering
Nominal 90° Setting
Electronic Steering Applied
Array E-theta -3dB Beamwidth = 24.9 ° Array E-phi -3dB Beamwidth = 71.3° Directivity = 13 dB INFORMATION & TELECOMMUNICATION TECHNOLOGY CENTER