The present invention is directed to an integrated antenna and feed network assembly. The first resistor converts a current flowing through the first resistor to a voltage drop between positive and negative sides of the first resistor. The toner for electrophotography of the present invention is suitably used for, for example, developing a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method, or the like. Other catalysts and catalyst synthesis techniques are also described.