Frequency Selective Surfaces for extended Bandwidth backing reflector functions
conference paper
This paper deals with the use of Frequency Selective Surfaces (FSS) to increase the Efficiency × Bandwidth product in Ultra-Wide Band (UWB) antenna arrays whose efficiency is limited by the front-to-back ratio. If the backing reflector is realized in one metal plane solution its location will be suitable as antenna ground plane only on a limited frequency range. In order to extend the higher frequency range of usability, an FSS can be sandwiched between the antenna and the ground plane. Ideally this FSS will not affect the behavior of the antenna at lower frequencies. The trade-offs that lead this type of designs will be discussed, having in mind a scenario with several antennas sharing the same platform or an unique UWB antenna array operating on the concept of connected arrays. © 2008 EuMA.
Topics
Antenna arraysAntenna groundsBroadband networksElectric filtersElectromagnetic wave polarizationMicrowavesReflectionTelecommunication systemsBandwidth productsConnected arraysFrequency rangesFrequency-selective surfacesFront-to-back ratiosGround planesHigher frequenciesLower frequenciesMetal planesUltra-wide bandsMicrowave antennas
TNO Identifier
241221
ISBN
9782874870064
Publisher
Eurpean Microwave Association EuMA
Source title
European Microwave Week, EuMW 2008 - 38th European Microwave Conference - EuMC 2008, 27 - 31 October 2008, Amsterdam, Netherlands
Pages
674-677
Files
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