Title
Design of a RF Switch Used in Redundant Atomic Clock Configurations.
Abstract
Atomic clocks provide frequency reference signals for communication, aerospace, satellite navigation and other systems. The redundant configuration of atomic clocks is necessary for ensuring the continuity and stability of the system. A radio frequency (RF) switch is usually used as a switching device in the switching system of the host atomic clock and the backup atomic clock. When the atomic clock fails, the switching between the host and the backup clock can be carried out quickly. Aiming at the fast switching requirements of atomic clock RF signals, this paper proposes a new series-shunt Positive Intrinsic Negative (PIN) switch design. In this paper, the evaluation of the RF switches is conducted by using the metrics of switching speed, insertion loss, isolation, return loss at on state and return loss at off state. Experimental result shows that the new PIN switch has better and more comprehensive performance metrics than the electromechanical switch, FET switch and conventional PIN switch. In particular, the switching speed is 53 ns faster than the conventional series-shunt PIN switch.
Year
DOI
Venue
2019
10.3390/s19102331
SENSORS
Keywords
Field
DocType
atomic clock,redundant configuration,RF switch,switching speed
Switching time,Return loss,Satellite navigation,Radio frequency,Electronic engineering,Engineering,RF switch,Insertion loss,Backup,Atomic clock
Journal
Volume
Issue
ISSN
19
10
1424-8220
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Hou Yuqing113.05
Sangyuan Wang200.34
Sheng Tang301.35
Tao Zhang422069.03