Cambridge Silicon Radio Limited

Qualcomm Technologies International, Ltd.

Terence Chi-Fung Kwok

Simon Chang

Alexander Thoukydides

Vlad Lenive

Timothy John Newton

A shielded system for reducing energy dissipation from an RF component into a semiconductor substrate, the shielded system comprising: a semiconductor substrate; an RF component in connection with the semiconductor substrate; an electrically connected shielding structure having a galvanic connection to ground or the semiconductor substrate, the electrically connected shielding structure being electrically connected to the RF component; and an electrically isolated shielding structure having no galvanic connection to ground, the semiconductor substrate or the RF component.

Shielded system

An integrated circuit includes a digital interface for connection to a host controller; an antenna connection for connection to an antenna; a radio frequency transceiver for communicating data in accordance with one or more radio communication protocols, the radio frequency transceiver being configured to communicate radio frequency signals over the antenna connection in response to data exchanged over the digital interface; and radio loop-through circuitry for exchanging radio frequency signals with another integrated circuit, the radio loop-through circuitry being configured to provide radio frequency signals received at the antenna connection to an output connection of the integrated circuit.

Loop-through circuit

A transceiver includes a first circuit having a connector for connection to an antenna and receiving circuitry, and a second circuit having transmitting circuitry. The first and second circuits are coupled using a balun, where the balun is arranged so that its unbalanced side is in the first circuit and its balanced side is in the second circuit.

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London, United Kingdom

Terence Chi-Fung Kwok