Polarization-controllable zeroth-order-resonator antennas with reactance loads at both ends

Summary form only given, as follows. Polarization-controllable zeroth-order-resonator antenna with reactance loads at both ends is proposed and demonstrated. The impedance of one load is the complex conjugate of another. When the center microstrip line is perpendicular to the stubs, the polarization of radiation fields from the center microstrip line is orthogonal to that from the stubs. By changing the terminating condition, we can continuously rotate the co-polarization direction of the linearly-polarized radiation.