Generation of Second and Fourth Harmonic Signals Using a Balanced Colpitts Oscillator With a Patch Antenna

作者：Seok Eunyoung^*; Shim Dongha; Arenas Daniel J; Tanner David B; Kenneth K O

来源：IEEE Microwave and Wireless Components Letters, 2010, 20(10): 554-556.

DOI：10.1109/LMWC.2010.2058096

• Colpitts oscillator
• on-chip patch antenna
• SiGe

A Colpitts oscillator that generates signal at 589 GHz using both phase superposition and nonlinearities of components is demonstrated in a 0.12 mu m SiGe BiCMOS process. This approach increases the ratio between fourth and second order harmonic power levels by more than 2 dB compared to that obtained using only linear phase superposition. The output power of this circuit with the highest operating frequency for transistor based signal generators is -37.7 dBm.

• 出版日期2010-10