A low phase noise FBAR based multiband VCO design. - Guoqiang Zhang 005; Abhay Kochhar; Keiji Yoshida; Shuji Tanaka; Ken-ya Hashimoto; Masayoshi Esashi; Haruichi Kanaya; Ramesh K. Pokharel (IEICE Electron. Express, 2013)

The methods of maintaining Low frequency stability in FBAR based cross-coupled VCO design. - Guoqiang Zhang 005; Abhay Kochhar; Keiji Yoshida; Shuji Tanaka; Ken-ya Hashimoto; Masayoshi Esashi; Ramesh K. Pokharel (IEICE Electron. Express, 2013)

A 1.9GHz Low-Phase-Noise Complementary Cross-Coupled FBAR-VCO without Additional Voltage Headroom in 0.18µm CMOS Technology. - Guoqiang Zhang 005; Awinash Anand; Kousuke Hikichi; Shuji Tanaka; Masayoshi Esashi; Ken-ya Hashimoto; Shinji Taniguchi; Ramesh K. Pokharel (IEICE Trans. Electron., 2017)

A 3.2 ppm/°C Second-Order Temperature Compensated CMOS On-Chip Oscillator Using Voltage Ratio Adjusting Technique. - Guoqiang Zhang 005; Kosuke Yayama; Akio Katsushima; Takahiro Miki (IEEE J. Solid State Circuits, 2018)

A Differential on Chip Oscillator with 1.47-μs Startup Time and 3.3-ppm/°C Temperature Coefficient of Frequency. - Guoqiang Zhang 005; Lingjin Cao; Kosuke Yayama; Akio Katsushima; Takahiro Miki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2021)

Monolithic Fabrication of Film Bulk Acoustic Resonators above Integrated Circuit by Adhesive- Bonding-Based Film Transfer. - Abhay Kochhar; Takeshi Matsumura; Guoqiang Zhang 005; Ramesh K. Pokharel; Ken-ya Hashimoto; Masayoshi Esashi; Shuji Tanaka (IEEE DataPort, 2022)