This update to the original iPhone adds 3G data, GPS, and a new shape on the back side. An updated OS supports third-party software, plus corporate email, sync, and VPN features. Other features are ...

Abstract: In this paper, an in-phase (I) and quadrature-phase (Q) balance-enhanced wideband receiver RF front-end is proposed using a quadrature sampling passive mixer configuration, which can be ...

Customers of the UK's biggest mobile providers are being urged to upgrade their tech to avoid losing access to mobile internet. The warning comes as O2 announced the imminent shutdown of its 3G ...

Abstract: This article presents a novel triband dual-polarized shared-aperture antenna with frequency-selective function for sub-6 GHz base station applications. The proposed antenna is composed of a ...

Anyone still using an older mobile phone on the O2 network is being urged to upgrade now. The popular UK mobile provider has just issued a final warning ahead of the imminent shutdown of its 3G ...