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The design of a minimally invasive surgery tool for the detection and treatment of cancerous tissue is presented. The planar structure is based on spiral resonators, with an operating frequency range from 4 GHz to 6 GHz, excited by a conventional coplanar waveguide to, firstly, extract resonance shifts to gain information about permittivity changes in the surrounded tissue. As second feature, tumorous...
In this paper measurements of changes in NaCl concentration in aqueous solutions are presented. For these measurements a simplified pseudo random binary sequence (PRBS) based sensor system, which is based on the binary noise theorem, is used. The pseudo random noise signal is represented by an M-sequence with a bandwidth of 10GHz. The transfer functions of the sensor with different NaCl concentrations...
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