Ku-Band Six-Bit RF MEMS Time Delay Network

A six-bit time delay circuit operating from DC to 18 GHz is reported. Capacitively loaded transmission lines are used to reduce the physical length of the delay elements and shrink the die size. Additionally, selection of the reference line lengths to avoid resonances allows the replacement of serie...

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Bibliographic Details
Main Authors: Nordquist, C.D., Dyck, C.W., Kraus, G.M., Sullivan, C.T., Austin, F., Finnegan, P.S., Ballance, M.H.
Format: Conference Proceeding
Language:English
Subjects:
Broadband antennas
Delay effects
Distributed parameter circuits
Microstrip
Phase shifters
Phased arrays
Radiofrequency microelectromechanical systems
Resonance
Switches
Switching circuits
Online Access:Request full text
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Description
Summary:A six-bit time delay circuit operating from DC to 18 GHz is reported. Capacitively loaded transmission lines are used to reduce the physical length of the delay elements and shrink the die size. Additionally, selection of the reference line lengths to avoid resonances allows the replacement of series-shunt switching elements with only series elements. With through-wafer transitions and a packaging seal ring, the 7 mm x 10 mm circuit demonstrates
ISSN:1550-8781
2374-8443
DOI:10.1109/CSICS.2008.29