Premium
A compact wideband dual‐polarized linear array with hybrid structure and resistive loadings
Author(s) -
Zhang Hangyu,
Yang Shiwen,
Xiao Shiwei,
Huang Ming,
Zhou Li,
Chen Yikai,
Qu Shiwei
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21736
Subject(s) - standing wave ratio , wideband , resistive touchscreen , planar array , dipole , bandwidth (computing) , optics , ground plane , planar , array gain , dipole antenna , materials science , aperture (computer memory) , array data structure , physics , antenna array , acoustics , optoelectronics , computer science , electrical engineering , telecommunications , engineering , antenna (radio) , microstrip antenna , computer graphics (images) , quantum mechanics
A wideband, wide‐scan dual‐polarized linear tightly coupled dipole array is presented. The array is based on a prior work, but it employs a hybrid design of planar cross‐finger dipoles and vertical tapered dipoles to form a non‐oversampled aperture with reduced array width and robust structure. Moreover, wider bandwidth and lower profile height are also achieved in the array as compared to the prior work by introducing resistive loadings between dipoles and ground plane, at the expense of acceptable gain loss. Consequently, the array with width of 99.8 mm and profile height of 86.3 mm provides a performance of 5.7:1 bandwidth (0.35‐2 GHz) for active Voltage Standing Wave Ratio (VSWR) < 3.0 while scanning up to 50°, with orthogonal port isolation below −15 dB. A 1 × 18 prototype array was fabricated and measured, showing good agreement with simulations.