A compact high‐sensitivity tangential E‐probe with resonator and coupled balun.

A compact high‐sensitivity probe for sensing up tangential E‐field is proposed and measured in this paper. The probe consists of an electric dipole with patches used to induce the tangential E‐field, a resonator made up of open circuit stubs (capacitor) and short circuit stubs (inductor), for achieving a specific resonance, and a compact coupled balun for transforming the differential‐mode voltage into the single‐output voltage and impedance matching. The probe is fabricated on five‐layer dielectric lamina. Compared with the referenced broadband probe, the measured |S12| of the probe is enhanced by 18.81 dB. The proposed probe in this paper is validated with simulation and measurement. [ABSTRACT FROM AUTHOR]