Results 81 to 90 of about 4,418 (227)

A Novel Design of an H-shaped Microstrip Diplexer

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
In this paper, a new microstrip diplexer using modified H-shaped resonators with a compact size and high isolation is presented. This circuit is designed for the ISM band at 2.4 GHz and GPS at 1.575 GHz.
A. Chinig, H. Bennis
doaj   +1 more source

Performance interface document for the S-band diplexer for space users of NASA networks [PDF]

open access: yes
This report discusses the test results and interfacing information of the S-band diplexer development program supported by RTOP 310 funding. The program was implemented to reduce the S-band transponder noise figure by minimizing the receive channel ...
Line, L. G.
core   +1 more source

Resonant-grid quasioptical diplexer

open access: yesElectronics Letters, 1973
Measurements on a polarisation independent-resonant-grid diplexer are described. The grid transmits the 13·5 to 19 GHz band (loss < 1 dB). It reflects the 23 to 36 GHz band (loss < 1 dB) at an angle of 40° to the incident beam. Peak rejections exceed 44dB. Crosspolarised components are below 30dB.
openaire   +1 more source

Research in millimeter wave techniques [PDF]

open access: yes
Work on the development of an improved 183 GHz subharmonic mixer was concentrated in two areas. First, there was an improved performance from current mixer body designs by testing different diodes and varying the whisker lengths.
Forsythe, R. E.
core   +1 more source

Microwave limb sounder [PDF]

open access: yes, 1981
Trace gases in the upper atmosphere can be measured by comparing spectral noise content of limb soundings with the spectral noise content of cold space. An offset Cassegrain antenna system and tiltable input mirror alternately look out at the limb and up
Gustincic, J. J.
core   +1 more source

Design of integrated diplexer-power divider [PDF]

open access: yes, 2016
A new configuration is introduced to integrate diplexers and power dividers. The proposed configuration is based on coupling matrix. The design of the lumped element network is based on addition of an extra term to the conventional error function of the ...
Kildal, Per-Simon   +3 more
core   +1 more source

Thin-Film Personal Communications and Telemetry System /TFPCTS/, phase C Quarterly report, Sep. 24 - Dec. 24, 1967 [PDF]

open access: yes
Assembly and development of radio frequency portions of transmitter and receiver in thin film personal communications and telemetry ...

core   +1 more source

Quadrature LC VCO with passive coupling and phase combining network [PDF]

open access: yes, 2016
A circuit and method for generating a signal is disclosed. The circuit includes a set of wide tuning LC tanks, a set of core transistors cross coupled to the set of wide tuning LC tanks, and a combining network coupled to the set of wide tuning LC tanks ...
O, Kenneth K.   +2 more
core   +1 more source

ATS-5 trilateration support [PDF]

open access: yes
The development of an L-band trilateration network capable of locating the ATS-5 satellite, determining the satellite's orbital elements, and predicting the satellite position was investigated.
Anderson, R. E., Brisken, A. F.
core   +1 more source

Frequency translating phase conjugation circuit for active retrodirective antenna array [PDF]

open access: yes, 1980
An active retrodirective antenna array which has central phasing from a reference antenna element through a "tree" structured network of transmission lines utilizes a number of phase conjugate circuits (PCCs) at each node and a phase reference ...
Chernoff, R.
core   +1 more source

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