Development of antenna system for S-band mobile satellite communications and broadcasting

2002 ◽  
Author(s):  
K. Haryu ◽  
Y. Yamasa ◽  
T. Okamoto ◽  
Y. Otsu ◽  
K. Yoneyama
Keyword(s):  
Satellite Communications ◽  
Antenna System ◽  
Mobile Satellite

Simple Switched-Beam Array Antenna System for Mobile Satellite Communications

2009 ◽  
Vol E92-B (12) ◽  
pp. 3861-3868 ◽  
Author(s):  
BASARI ◽  
M. Fauzan E. PURNOMO ◽  
Kazuyuki SAITO ◽  
Masaharu TAKAHASHI ◽  
Koichi ITO
Keyword(s):  
Satellite Communications ◽  
Antenna System ◽  
Array Antenna ◽  
Beam Array ◽  
Mobile Satellite

scholarly journals Antenna System for Land Mobile Satellite Communications

10.5772/9980 ◽  
2010 ◽  
Author(s):  
Basari Basari ◽  
Kazuyuki Saito ◽  
Masaharu Takahashi ◽  
Koichi Ito
Keyword(s):  
Satellite Communications ◽  
Antenna System ◽  
Mobile Satellite

Concept for a cost/technology-driven mobile satellite communications (MOBILSATCOM) system

1990 ◽  
Author(s):  
John M. Ruddy ◽  
Robert T. Carlson ◽  
Thomas J. Ferguson ◽  
Ronald A. Haberkorn ◽  
Neal D. Hulkower ◽  
...  
Keyword(s):  
Satellite Communications ◽  
Mobile Satellite

Multi-band planar diplexers with sub-sets of frequency-contiguous transmission bands

2021 ◽  
pp. 1-11
Author(s):  
Roberto Gómez-García ◽  
Li Yang ◽  
José-María Muñoz-Ferreras ◽  
Dimitra Psychogiou
Keyword(s):  
High Frequency ◽  
Transmission Band ◽  
Satellite Communications ◽  
Proof Of Concept ◽  
Transmission Zeros ◽  
Cascade Connection ◽  
Coupling Techniques ◽  
In Series ◽  
Mobile Satellite ◽  
Multi Band

Abstract A class of multi-band planar diplexer with sub-sets of frequency-contiguous transmission bands is reported. Such a radio frequency (RF) device is suitable for lightweight high-frequency receivers aimed at multi-band/multi-purpose mobile satellite communications systems. It consists of two channelizing filters, each of them being made up of the in-series cascade connection of replicas of a constituent multi-passband/multi-embedded-stopband filtering stage. This building filtering stage defines a multi-passband transfer function for each channel, in which each main transmission band is split into various sub-passbands by the multi-stopband part. In this manner, each split passband gives rise to several sub-passbands that are imbricated with their counterpart ones of the other channel. The theoretical RF operational principles of the proposed multi-band diplexer approach with sub-sets of imbricated passbands are detailed by means of a coupling–routing–diagram formalism. Besides, the generation of additional transmission zeros in each channelizing filter for higher-selectivity realizations by exploiting cross-coupling techniques into it is also detailed. Furthermore, for experimental demonstration purposes, a microstrip proof-of-concept prototype of second-order octo-band diplexer in the frequency range of 1.5–2.5 GHz that consists of two quad-band channelizing filters with pairs of imbricated passbands is developed and characterized.

Sign in / Sign up

Export Citation Format

Share Document