Complex coefficient reference networks with transmission zeros on imaginary axis

1995 ◽  
Vol 78 (12) ◽  
pp. 59-69
Author(s):  
Osamu Yamazaki ◽  
Shin-Ichi Takahashi
Keyword(s):  
Imaginary Axis ◽  
Complex Coefficient ◽  
Transmission Zeros ◽  
Reference Networks

scholarly journals Tunable Bandpass Filters With Reconfigurable Symmetric Transmission Zeros on Real or Imaginary Axis

2021 ◽  
pp. 1-17
Author(s):  
Wentao Lin ◽  
Ping Zhao ◽  
Tae-Hak Lee ◽  
Taijun Liu ◽  
Jean-Jacques Laurin ◽  
...  
Keyword(s):  
Imaginary Axis ◽  
Bandpass Filters ◽  
Transmission Zeros

On Transmission Zeros of Mass-Dashpot-Spring Systems

1999 ◽  
Vol 121 (2) ◽  
pp. 179-183 ◽  
Author(s):  
Jong-Lick Lin
Keyword(s):  
Real Axis ◽  
Imaginary Axis ◽  
Natural Frequencies ◽  
Negative Real Axis ◽  
Transmission Zeros ◽  
Novel Approach ◽  
Spring System ◽  
Mass Spring ◽  
Insight Into ◽  
Interlacing Property

For a noncollocated mass-dashpot-spring system with B=CTΓ, a novel approach is proposed to gain a better insight into the fact that none of its transmission zeros lie in the open right-half of the complex plane. In addition, the transmission zeros have physical meanings and will simply be the natural frequencies of a substructure constrained in the equivalently transformed system. Moreover, it is also shown that transmission zeros interlace with poles along the imaginary axis for a mass-spring system with B=CTΓ. They also interlace with poles along the negative real axis for a mass-dashpot system with B=CTΓ. Finally, two examples are used to illustrate the interlacing property.

Thermal Considerations in Lens Regulator Systems

1970 ◽  
Vol 28 ◽  
pp. 358-359
Author(s):  
K.C. Newton
Keyword(s):  
Electron Microscope ◽  
Thermal Effects ◽  
Environmental Control ◽  
Reference Networks ◽  
Better Than

Thermal effects in lens regulator systems have become a major problem with the extension of electron microscope resolution capabilities below 5 Angstrom units. Larger columns with immersion lenses and increased accelerating potentials have made solutions more difficult by increasing the power being handled. Environmental control, component choice, and wiring design provide answers, however. Figure 1 indicates with broken lines where thermal problems develop in regulator systemsExtensive environmental control is required in the sampling and reference networks. In each case, stability better than I ppm/min. is required. Components with thermal coefficients satisfactory for these applications without environmental control are either not available or priced prohibitively.

Phase-Locked Loop Using Complex-Coefficient Filters for Grid-Connected Inverter

2013 ◽  
Vol 133 (4) ◽  
pp. 388-394 ◽  
Author(s):  
Akihiro Ohori ◽  
Nobuyuki Hattori ◽  
Tsuyoshi Funaki
Keyword(s):  
Phase Locked Loop ◽  
Complex Coefficient ◽  
Grid Connected Inverter
Sign in / Sign up

Export Citation Format

Share Document