Results 81 to 90 of about 4,418 (227)
A Novel Design of an H-shaped Microstrip Diplexer
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]
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
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]
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
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]
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]
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]
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]
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]
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

