GaAs FET Current-Mode Integrators and Their Application to Filters |
| |
Authors: | Nobukazu Takai Nobuo Fujii |
| |
Affiliation: | (1) Department of Physical Electronics, Tokyo Institute of Technology, Tokyo, 152–8552, Japan |
| |
Abstract: | In this paper, current-mode integrators which consist of only n-channel depletion-mode FET and their application to filters are presented. Lossy integrator is simply realized with a capacitor and a grounded gate FET. Lossless integrator can be obtained by providing a lossy integrator with a positive feedback. To do this, multi-output current mirror is proposed. To reduce 2nd-order harmonic and THD of the filter, unbalanced/balanced conversion circuit is proposed. As an application example, 3rd-order leapfrog low-pass Chebyshev filter is simulated with GaAs MESFET process parameters. Simulation results show good performances. |
| |
Keywords: | GaAs MESFET current-mode current mirror |
本文献已被 SpringerLink 等数据库收录! |
|