A technique to achieve ultra-wideband continuous frequency generation is introduced. It is based on orthogonal E-wall and H-wall tuning of distributed resonators, in standing wave mode configurations. The tuning scheme in fact serves dual purposes for generating concurrent tones as well as wide-band tuning operation. It is scalable and could be applied to any frequency band, but since it is designed around distributed resonators, it is more desirable for higher frequencies. In comparison with alternative methods, the technique requires less silicon space, lower power consumption, better phase noise, as well as a wider tuning range.