Millimeter Wave Photonic Tightly Coupled Array

We present a tightly coupled array antenna excited by high-power photodiodes for millimeter wave transmit operation. The design includes thinned photodiode substrates for improved bandwidth performance at high frequency combined with the inherently lightweight, low-loss, and direct feeding architect...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2021-08, Vol.69 (8), p.4488-4503
Main Authors: Carey, Victoria A., Konkol, Matthew R., Shi, Shouyuan, Mercante, Andrew J., Shreve, Kevin, Wright, Andrew A., Schuetz, Christopher A., Prather, Dennis W.
Format: Article
Language:English
Subjects:
Antenna arrays
Bandwidth
Bandwidths
Circuit design
Effective isotropic radiated power (EIRP)
Feeds
High-power photodiode
Millimeter waves
Optical arrays
optically fed phased array
Phased arrays
Photodiodes
Photonics
RF photonics
Substrates
tightly coupled array (TCA) antenna
ultrawideband (UWB)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present a tightly coupled array antenna excited by high-power photodiodes for millimeter wave transmit operation. The design includes thinned photodiode substrates for improved bandwidth performance at high frequency combined with the inherently lightweight, low-loss, and direct feeding architecture afforded by the photonic approach. Circuit and full wave simulations are conducted for array design and compared against the traditional electronic arrays in the literature. A prototype 1 \times 3 photonic array is developed and characterized to validate the design which achieves a 3 dB ( VSWR < 1.4 ) radiated power bandwidth of 4.6:1 across 13-60 GHz and maintains a 3 dB bandwidth near 4:1 across scan angles up to 30°. The fabricated array exhibits a 3 dB radiated power bandwidth of 1.8:1 across 30-55 GHz and a maximum measured effective isotropic radiated power of 19.4 dBm at 40 GHz.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2021.3052340