Phased-Array Antenna

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Array E-theta -3dB Beamwidth = 24.9 °. Array E-phi -3dB Beamwidth = 71.3°. Directivity = 13 dB. Nominal 90° Setting. Electronic Steering Applied. Radiation ...
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