Patent
Compensation for signal fading in communication system - uses single antenna and compares signals received at different angles of incidence
Reads0
Chats0
TLDR
In this article, the authors proposed a method for the compensation of propagation fading in a communications system using angular diversity reception with a single aerial system, where signals arriving axially to the antenna exciter (Er) are arranged to excite a signal of basic wave type (H10) and those arriving at an angle to the axis (H20), the two being separated in the mode coupler (M).Abstract:
The method for the compensation of propagation fading in a communications system using angular diversity reception with a single aerial system. Signals arriving axially to the antenna exciter (Er) are arranged to excite a signal of basic wave type (H10) and those arriving at an angle to the axis excite a signal of a higher mode (H20), the two being separated in the mode coupler (M). The two separated signals are fed to a pair of receivers coupled to give diversity reception in the normal way.read more
Citations
More filters
Patent
Angle diversity signal separator using mode conversion
TL;DR: In this article, an angle diversity receiving system is proposed, where the primary and diversity signals are produced by a waveguide signal separator coupled to a single receiving antenna. And the result is a robust system that operates over a frequency band wide enough to cover both the 4 GHz and 6 GHz common carrier bands with both horizontally and vertically polarized signals.
Patent
Microwave communication transmission apparatus with multimode diversity combining reception
TL;DR: In this paper, a microwave transmission system for multipath propagation, which operates on the angle diversity principle, is described, where the opening angle of the beam of the main wave type is assimilated to the aperture angles of the radiation lobes of the higher wave types or conversely, to increase the radiation gain of the antenna both in the plane of the electric field in the planes of the magnetic field.
Patent
Angular-diversity system and device
TL;DR: In this article, an angular diversity system for multipath propagation in a radio field is proposed. But it does not specify an angular-diversity system that permits reception of the transmitted signals with a low error probability.
Patent
Supply system for angle diversity operation of dish reflector antenna - has pair of horns between dish and sub-reflector defining angle between them
TL;DR: In this paper, the antenna system has a main dish reflector (HR) and a sub-reflector (SR) with the horns located between them, coupled to a polarisation branch (PW1,PW2).
Patent
Antennen-Speisesystem im Mikrowellenbereich für Reflektorantennen
TL;DR: In this paper, an Antennen-Speisesystem im Mikrowellenbereich fur Reflektorantennen, das fur mindestens zwei Frequenzbereiche ausgelegt ist, weist a koaxial ineinander angeordnete Erreger-Hohlleiter (SH, RX) auf, die sowohl orthogonale H11-Wellen als auch eine TEM-Welle bilden, and ist with Mittel (K