NDLI: A four-device power combiner used as a lossless high power switch at 94 GHz

Content Provider	IEEE Xplore Digital Library
Author	Barth, H.
Copyright Year	1989
Description	Author affiliation: AEG AG, Ulm, West Germany (Barth, H.)
Abstract	It is noted that in the millimeter-wave range p-i-n-diode switches are rather lossy (about 2 dB at 94 GHz). Additionally, the power-handling capability of beam-led diodes is limited to some 100-mW average power. To overcome switching problems in high-power applications, e.g. for a pulse radar, the injection power for a symmetrical four-coupler power combiner is switched from one of its two input ports to the other. Hence, the combined power alternately appears at one of the two output ports. If power and phase of the combined oscillators are balanced within 0.5 dB and +or-10 degrees , the power level at the difference port is more than 25 dB below the power level at the sum port. In this manner, the insertion loss of the lossy single-port, double-throw p-i-n-diode switch reduces only the low-level injection power while the combined power of the four devices is switched losslessly between the two output ports of the combiner network. This approach is used to switch the radar transmit power from left- to right-hand circular polarization.
Starting Page	1087
Ending Page	1090
File Size	240260
Page Count	4
File Format	PDF
DOI	10.1109/MWSYM.1989.38911
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-06-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switches Power combiners Polarization Waveguide junctions Millimeter wave radar Diodes Radar applications Oscillators Insertion loss Circulators
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Millimeter-wave integrated waveguide power dividers for power combiner and phased array applications

An Integrated Receiver Frontend for a 94 GHZ Dual Polarization Radar

Low Loss Low Cost Microstrip Millimeter Wave Switches at 94 GHz

Millimetre-wave quasi-optical low-loss power combiner based on dipole antenna

Compact transformer power combiners for millimeter-wave wireless applications

Power Combiner with Gunn Diode Oscillators

Design of a 94 GHz Millimeter-Wave Four-Way Power Combiner Based on Circular Waveguide Structure

A circuit, waveguide, and spatial power combiner for millimeter-wave amplification

Millimeter wave quasi-optical power combiner

A four-device power combiner used as a lossless high power switch at 94 GHz

Similar Documents

Millimeter-wave integrated waveguide power dividers for power combiner and phased array applications

An Integrated Receiver Frontend for a 94 GHZ Dual Polarization Radar

Low Loss Low Cost Microstrip Millimeter Wave Switches at 94 GHz

Millimetre-wave quasi-optical low-loss power combiner based on dipole antenna

Compact transformer power combiners for millimeter-wave wireless applications

Power Combiner with Gunn Diode Oscillators

Design of a 94 GHz Millimeter-Wave Four-Way Power Combiner Based on Circular Waveguide Structure

A circuit, waveguide, and spatial power combiner for millimeter-wave amplification

Millimeter wave quasi-optical power combiner

A four-device power combiner used as a lossless high power switch at 94 GHz