Results 91 to 100 of about 1,475 (203)

Method and apparatus for measuring distance [PDF]

open access: yes, 1988
The invention employs a continuous wave radar technique and apparatus which can be used as a distance measuring system in the presence of background clutter by utilizing small passive transponders.
Kobayashi, Herbert S.   +2 more
core   +1 more source

Multiple Order Dual-Band Active Ring Filters with Composite Right/Left Handed Cells [PDF]

open access: yes, 2010
In this paper, a novel dual-band active filter topology is presented. The non-linear phase response of a composite right/left-handed cell is used to achieve the desired dual-band performance.
García Muñoz, Luis Enrique   +3 more
core   +2 more sources

High Resolution Microimaging with Pulsed Electrically-Detected Magnetic Resonance

open access: yes, 2014
The investigation of paramagnetic species (such as point defects, dopants, and impurities) in solid-state electronic devices is significant because of their effect on device performance.
Blank, Aharon   +4 more
core   +1 more source

Design of a Microstrip Diplexer and Triplexer Using Open Loop Resonators

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
In this paper a novel design of microstrip diplexer and triplexer using open loop resonators is presented. The proposed diplexer if formed by two band-pass filters for the Industrial Scientific Medical (ISM) applications at 5.8 GHz and the WIMAX ...
A. Chinig   +5 more
doaj   +1 more source

High-gain self-steering microwave repeater, volume 1 Final engineering report, Jan. 1966 - Apr. 1969 [PDF]

open access: yes
Engineering model of high gain self steering microwave transponder and application to satellite communication ...
Birgenheier, R. A., Kummer, W. H.
core   +1 more source

Ka-band gap waveguide coupled-resonator filter for radio link diplexers [PDF]

open access: yes, 2012
Gap waveguide technology represents an interesting alternative as low-loss, cost-effective and high-performance transmission line and package of microwave and millimeter-wave systems.
Alfonso, Esperanza, Kildal, Per-Simon
core  

Design of a simple transition from microstrip to ridge gap waveguide suited for MMIC and antenna integration [PDF]

open access: yes, 2013
This letter describes a simple and low-loss microstrip-to-ridge gap waveguide transition with a very compact geometry. The transition transforms the electromagnetic (EM) fields from the microstrip mode to the air-filled ridge gap waveguide mode.
Alexanderson, Mats   +3 more
core   +1 more source

A Novel Design for a Planar Microstrip Triple Diplexer With Enhanced Selectivity Using Highly-Selective Bandpass Filters

open access: yesIEEE Access
This paper presents a novel, compact, and cost-effective design for a planar microstrip triple diplexer. The design incorporates three high-selectivity bandpass filters to ensure excellent isolation between the three operating bands.
Kai-Che Lin, Ching-Wen Tang
doaj   +1 more source

High-isolation microstrip two-port diplexer and full-duplex antenna with metamaterial-based filters

open access: yesDiscover Applied Sciences
This article presents an efficient and novel design of a microstrip three-terminal diplexer and a two-port full-duplex antenna system incorporating metamaterial-based filtering techniques to achieve high isolation and low insertion loss.
Rania Hamdy Elabd   +2 more
doaj   +1 more source

Gap waveguide components for millimeter-wave systems. Couplers, filters, antennas, MMIC packaging [PDF]

open access: yes, 2012
Design of passive components (couplers, filters and antennas) and MMIC packaging validation intended for RF front ends for microwave links at 38 GHz using gap waveguide technology have been shown.
Alfonso, Esperanza   +3 more
core  

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