Title
A True-Time-Delay Transmit/Receive Module For X-Band Subarray Phased Arrays
Abstract
This letter presents the implementation of a 6-bit true-time-delay (TTD) transmit/receive (T/R) module in X-band. Improved phase linearity is achieved by using thin film coplanar waveguide transmission lines than traditional microstrip lines or lumped LC components of the most other TTD designs. In order to meet the requirement of the large dynamic temperature range in practice, the hybrid coupler reflective phase shifters with varactor diodes are adopted in long-time-delay units as temperature compensations for thermal phase drift. Experimental results of this TTD T/R module are carried out within a bandwidth of 1.2 GHz at X-band. The gain flatness is better than 1 dB and RMSE of the phase errors is less than 7 degrees in all the transmitting and receiving delay states.
Year
DOI
Venue
2017
10.1587/elex.14.20171039
IEICE ELECTRONICS EXPRESS
Keywords
Field
DocType
coplanar waveguide, phased array, phase shifter, transmit/receive module, true time delay (TTD)
Computer science,Optics,Phased array,True time delay,Electronic engineering,Phase shift module,Coplanar waveguide,X band
Journal
Volume
Issue
ISSN
14
22
1349-2543
Citations 
PageRank 
References 
0
0.34
4
Authors
7
Name
Order
Citations
PageRank
Yunchuan Guo12714.25
Chengwei Shang200.34
Kun Liu35715.38
Lei Wang4401111.60
Xiansuo Liu500.34
Yuehang Xu625.84
Tiedi Zhang735.31