Light-weight base station antenna with artificial wire medium lens

Light-Weight Base Station Antenna with Artificial Wire Medium Lens

In this paper we study the possibility of utilizing a loaded wire medium as an artificial material for beam shaping element in base station antenna applications. The wires in the lattice are loaded with a proper capacitive impedance to come up with a structure effectively operating as a dielectric lens at the UMTS (Universal Mobile Telecommunications System) frequency range. It is proven with f...

Base station antenna selection for LTE networks

High Capacity Adaptive Base-station Antenna Systems

The deployment of cellular systems is a success and as the number of subscribers grows, service providers may experience capacity problems due to limited frequency spectrum. Consequently, service providers need to find methods to enhance the coverage and capacity of their networks. Today’s systems are optimally designed for supporting speech traffic in circuit-switched services. The introductio...

Field Trial with a Gsm/dcs1800 Smart Antenna Base Station

We present measurement results with a GSM1800 smart antenna base station. The base station is equipped with an adaptive antenna array processor that allows in every GSM frame full beam adaptation in uplink and downlink. The smart antenna processing is based on the estimation of the directions of arrival in uplink. It includes separate DOA trackers for uplink and downlink, angular diversity, and...

Performance of a Base Station Feedback-Type Adaptive Array Antenna with Mobile Station Diversity Reception

In this paper, Bit Error Rate (BER) performance of Feedback-type Adaptive Array Antenna (AAA) in Frequency Division Duplex/Direct Sequence Code Division Multiple Access system (FDD/DS-CDMA) with Mobile Station (MS) reception diversity will be investigated. The results include the effects of maximum Doppler frequencies (fd) and antenna element spacing at Base Station (BS) under flat fading and f...