A front-end receiver with a dual cross-coupling technique for MICS applications

<p>This paper proposes a quasi-elliptic band pass filter in substrate integrated waveguide (SIW) by using cross coupling technique to produce transmission zeros (TZs) at both side. Finally, a fourth pole SIW quasi-elliptic filter at 5.75 GHz is designed in single layer substrate. Simulation results show that the filter has a center frequency of 5.75 GHz with the bandwidth of 100 MHz. The minimum insertion loss in the passband is 0.3 dB, and the return loss is better than 20 dB. Due to the TZs, the SIW filter has rapid transition performance at both lower and upper sidebands, good selectivity is achieved, while the SIW filter presents a very compact implementation and good<br />spurious rejection.</p>

Download Full-text

Low power 2.4-GHz receiver front-end using resoantor coupling technique

2011 IEEE 54th International Midwest Symposium on Circuits and Systems (MWSCAS) ◽

10.1109/mwscas.2011.6026386 ◽

2011 ◽

Author(s):

Chun-Hsing Li ◽

Chia-Yu Hsu ◽

Chien-Nan Kuo

Keyword(s):

Low Power ◽

Coupling Technique ◽

Front End

Download Full-text

Position - Velocity Control for Two PMDC Motors Connected by a Cross-Coupling Technique with Butterflies Optimization Algorithm

Journal of Techniques ◽

10.51173/jt.v3i2.323 ◽

2021 ◽

Vol 3 (2) ◽

pp. 31-44

Author(s):

Kareem Ghazi Abdulhussein ◽

Naseer M. Yasin ◽

Ihsan J. Hasan

Keyword(s):

Optimization Algorithm ◽

Optimal Parameter ◽

Cross Coupling ◽

Absolute Error ◽

Velocity Control ◽

Coupling Technique ◽

Dc Motors ◽

Working Together ◽

Permanent Magnet Dc Motors ◽

Parameter Values

In this paper, two contributions are presented. the first is to design two cascade controllers to control the velocity and position for two Permanent Magnet DC motors (PMDC) working together at the same time for use in many applications such as CNC machines, robotics, and others. Furthermore, the cross-coupling technique is used to connect these motors and adjust the precise synchronization of their movement on the axes. The second contribution is the use of the butterfly’s optimization algorithm (BOA) with the objective function Integral Time Absolute Error (ITAE) to extract the optimal parameter values for the two cascade controllers and the synchronization controller in order to obtain the best accurate results. The simulation results showed high accuracy to reach the desired position at a regular velocity of both the PMDC motors with accurate synchronization and tracking trajectory on the axes. In addition, a very small position deviation of 0.021 rad was observed, and the system returned to a steady-state after 2 seconds of applying the full load.

Download Full-text