Effect of RF spurious radiation from units on a satellite VHF receiver

2019 ◽  
Author(s):  
G. Galgani ◽  
G. Scozza ◽  
E. Scione ◽  
P. Pavia ◽  
D. Bibby ◽  
...  
Keyword(s):  
Spurious Radiation

Spurious radiation suppression in microstrip monopulse antenna

2020 ◽  
Vol 39 (4) ◽  
pp. 791-799
Author(s):  
Rasime Uyguroğlu ◽  
Allaeldien Mohamed Hnesh ◽  
Muhammad Sohail ◽  
Abdullah Y. Oztoprak
Keyword(s):  
Array Antenna ◽  
Slot Antennas ◽  
Conducting Plane ◽  
Content Type ◽  
Rectangular Slot ◽  
Substrate Layer ◽  
Feed Network ◽  
Microstrip Array ◽  
Spurious Radiation ◽  
Microstrip Array Antenna

Purpose This paper aims to introduce a new novel microstrip monopulse comparator system to reduce the spurious radiation from the comparator and the feed network for achieving better radiation performance. Design/methodology/approach Two substrate layers have been used for the microstrip monopulse comparator system. The feed network and the comparator circuits are on the first substrate layer and the microstrip array antenna is on the second layer. The elements of the array antenna are novel square four-sided narrow rectangular slot antennas built on a conducting plane. A commercially available computational software, CST microwave studio, has been used for the analysis of the system. Findings Two substrate layers have been used for the microstrip monopulse comparator system. The feed network and the comparator circuits are on the first substrate layer and the microstrip array antenna is on the second layer. The elements of the array antenna are novel square four-sided narrow rectangular slot antennas built on a conducting plane. A commercially available computational software, CST microwave studio, has been used for the analysis of the system. Practical implications The system is proposed for tracking moving targets. Originality/value Novel slot radiators are introduced as radiating elements in this paper. The antenna arrangement shields the comparator and the feed network circuits, reducing the spurious radiation significantly.

Low loss SAW double-mode structure suppressing spurious radiation

2005 ◽  
Author(s):  
T. Shiba ◽  
S. Oosawa ◽  
J. Hamasaki ◽  
Y. Fujita ◽  
T. Chiba
Keyword(s):  
Low Loss ◽  
Mode Structure ◽  
Spurious Radiation

scholarly journals Spurious radiation from microstrip interconnects

1993 ◽  
Vol 35 (2) ◽  
pp. 148-158 ◽  
Author(s):  
M.I. Aksun ◽  
R. Mittra
Keyword(s):  
Spurious Radiation

Wire-medium loaded planar structures: modal analysis, near fields, and radiation features

2016 ◽  
Vol 8 (4-5) ◽  
pp. 713-722 ◽  
Author(s):  
Davide Comite ◽  
Paolo Baccarelli ◽  
Paolo Burghignoli ◽  
Alessandro Galli
Keyword(s):  
Simulation Software ◽  
Planar Structures ◽  
Transverse Resonance ◽  
Tem Mode ◽  
Field Matching ◽  
Field Radiation ◽  
Vertically Aligned ◽  
Transverse Electromagnetic ◽  
Spurious Radiation

A novel transmission-line model is used for the analysis of planar structures, including wire-medium (WM) slabs with vertically aligned wires. The network formalism allows for an effective determination of the relevant spectral Green's functions, of the modal dispersion equation via transverse resonance, as well as of the far-field radiation pattern produced by simple sources via reciprocity, as opposed to the more cumbersome field-matching approach. Numerical results, validated also against state-of-the-art simulation software, confirm the accuracy and effectiveness of the proposed approach. In particular, modal and radiation features are presented for a class of leaky-wave antennas based on planar WM loaded configurations covered by partially reflecting screens, for which leaky unimodal regimes are achieved by minimizing spurious radiation from the quasi-transverse electromagnetic (TEM) mode.

Sign in / Sign up

Export Citation Format

Share Document