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We present a multi-band dual-mode tunable matching network for broadband applications. Several architectures based on a low-pass π matching network are discussed, whereas the possibility to insert fixed matching network solutions to relax the design constraints is explored. Different methods to efficiently control the network are also studied. The proposed studies are applied to design of broadband...
We present a novel method simplifying matching network synthesis and design based on a tunable low-pass matching network topology. This method exploits the Smith chart in a novel way. Analytic expressions for calculating the optimal matching network for automatically adapting the load to the source impedance are derived. This work is applied to a new antenna tuning unit concept able to calibrate...
This paper presents the design of an adaptive antenna-impedance tuning unit in 0.13µm CMOS technology. The design is intended for ultra low power medical applications operating at the 2.4GHz ISM frequency band. It describes the architecture and the design of the different units which are a power amplifier, a π tunable matching network, an attenuator and a down conversion module with mixer and GmC...
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