Reducing wet antenna attenuation of commercial microwave link using simple shielding

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00220548" target="_blank" >RIV/68407700:21110/14:00220548 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Reducing wet antenna attenuation of commercial microwave link using simple shielding

Popis výsledku v původním jazyce

Commercial microwave links (MWLs) are point to point radio systems widely used in telecommunication. They operate at frequencies where rain drops represent major source of attenuation. Previous studies have shown that path-averaged rainfall can be calculated from this attenuation. Unfortunately MWL estimated rainfall is often significantly biased due to additional attenuation caused by antenna wetting, so called wet antenna effect (WAE). This paper investigates straightforward approach to reduce WAE using antenna shielding which prevents direct antenna wetting. The experimental setup, located in Dübendorf-Switzerland, consists of 1.85-km long commercial dual-polarization microwave link at 38 GHz and 5 disdrometers. The MWL was operated without shielding in the period from March to October 2011 and with shielding from October 2011 to July 2012. Since theoretical path-averaged attenuation can be calculated from drop size distribution [5], wet antenna attenuation can be expressed explicit

Název v anglickém jazyce

Reducing wet antenna attenuation of commercial microwave link using simple shielding

Popis výsledku anglicky

Commercial microwave links (MWLs) are point to point radio systems widely used in telecommunication. They operate at frequencies where rain drops represent major source of attenuation. Previous studies have shown that path-averaged rainfall can be calculated from this attenuation. Unfortunately MWL estimated rainfall is often significantly biased due to additional attenuation caused by antenna wetting, so called wet antenna effect (WAE). This paper investigates straightforward approach to reduce WAE using antenna shielding which prevents direct antenna wetting. The experimental setup, located in Dübendorf-Switzerland, consists of 1.85-km long commercial dual-polarization microwave link at 38 GHz and 5 disdrometers. The MWL was operated without shielding in the period from March to October 2011 and with shielding from October 2011 to July 2012. Since theoretical path-averaged attenuation can be calculated from drop size distribution [5], wet antenna attenuation can be expressed explicit

Druh

O - Ostatní výsledky

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA14-22978S" target="_blank" >GA14-22978S: Predikce srážkového odtoku v urbanizovaných povodích na základě deštěm generovaného útlumu mikrovlnných spojů telekomunikační sítě</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů