Abstract: An injection-locked frequency dividing apparatus including a frequency multiplier, a first linear mixer, a second linear mixer, and an oscillator is disclosed. The frequency multiplier receives a frequency signal and generates a multiple-frequency signal accordingly. The first and the second linear mixer both receive the multiple-frequency signal and respectively receive a first input signal and a second input signal, wherein the phases of the first and the second input signal are complementary. The first and the second linear mixer respectively mix the multiple-frequency signal with the first and the second input signal to respectively generate a first mixed signal and a second mixed signal. The oscillator generates the frequency signal. The oscillator further receives the first and the second mixed signal and generates a first output signal and a second output signal accordingly, wherein the phases of the first and the second output signal are complementary.

Abstract: The present invention discloses a polymer and a copolymer and a method of making the same. The monomer of the polymer of the present invention includes a bi-triphenylamine functional group having a first end and a second end; a fluorene functional group bonded to the first end; and at least two phenyl isopropyl group bonded to the second end.

Abstract: A voltage control oscillator (VCO) includes a VCO circuit and a back-gate coupling circuit, wherein the VCO circuit includes at least a first transistor, a second transistor and a resonant cavity formed by an inductor and a capacitor. The back-gate coupling circuit is formed by a plurality of capacitors and a plurality of resistors. In the embodiments of the present invention, the capacitors are coupled to the back-gate terminals of the first transistor and the second transistor, so as to reduce the power consumption and the phase noise of the VCO.