Radio-frequency microfluidic interferometer in printed circuit board process

AbstractIn this paper, a novel directional filter (DF) is proposed and implemented using substrate integrated waveguide (SIW) technology which exhibits the advantages of compact size and simple structure. The proposed DF is realized by two half mode substrate integrated waveguides (HMSIWs) and two substrate integrated circular cavity (SICC) resonators operating in the TM110 degenerate modes in which an aperture is utilized to realize the coupling between HMSIWs and SICCs. Two slotlines with appropriate dimensions, etched on the top and bottom planes, are utilized in order to control coupling strength between two cascaded SICC resonators. The proposed two-circular cavity SIW DF at 12.3 GHz is designed and fabricated with a normal printed circuit board process. Measured and simulated results indicate that the DF has a 3.25% bandwidth, and the return loss as well as isolation are better than 10.5 and 15 dB, respectively.

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Using Multilayered Substrate Integrated Waveguide to Design Microwave Gain Equalizer

Advances in Materials Science and Engineering ◽

10.1155/2014/109247 ◽

2014 ◽

Vol 2014 ◽

pp. 1-6 ◽

Cited By ~ 7

Author(s):

Yongfei Wang ◽

Dongfang Zhou ◽

Yi Zhang ◽

Chaowen Chang

Keyword(s):

Equivalent Circuit ◽

Printed Circuit Board ◽

Circuit Board ◽

Substrate Integrated Waveguide ◽

Equivalent Circuit Analysis ◽

Compact Structure ◽

Printed Circuit ◽

Board Process ◽

Insight Into ◽

Ku Band

This paper presents the design and experiment of a novel microwave gain equalizer based on the substrate integrated waveguide (SIW) technique. The proposed equalizer is formed by an SIW loaded by SIW resonators, which has very compact structure and can compensate for gain slope of microwave systems. Equivalent circuit analysis is given about the proposed structure for a better insight into the structure’s response. A Ku-Band equalizer with four SIW resonators is simulated and fabricated with a multilayer printed circuit board process. The measured results show good performance and agreement with the simulated results; an attenuation slope of −4.5 dB over 12.5–13.5 GHz is reached with a size reduction of 76%.

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A Study on Combinatorial Dispatching Decision of Hybrid Flow Shop : Application to Printed Circuit Board Process

Journal of the Korean Institute of Industrial Engineers ◽

10.7232/jkiie.2013.39.1.010 ◽

2013 ◽

Vol 39 (1) ◽

pp. 10-19

Author(s):

Sungwook Yoon ◽

Daehoon Ko ◽

Jihyun Kim ◽

Sukjae Jeong

Keyword(s):

Printed Circuit Board ◽

Flow Shop ◽

Circuit Board ◽

Hybrid Flow Shop ◽

Printed Circuit ◽

Board Process

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Principle and structure of a printed circuit board process–based piezoelectric microfluidic pump integrated into printed circuit board

Journal of Intelligent Material Systems and Structures ◽

10.1177/1045389x19869519 ◽

2019 ◽

Vol 30 (17) ◽

pp. 2595-2604 ◽

Cited By ~ 1

Author(s):

Dai-Hua Wang ◽

Lian-Kai Tang ◽

Yun-Hao Peng ◽

Huai-Qiang Yu

Keyword(s):

Flow Rate ◽

Printed Circuit Board ◽

Flow Characteristics ◽

Circuit Board ◽

Microfluidic Systems ◽

Printed Circuit ◽

Board Processes ◽

Voltage Frequency ◽

Instantaneous Flow Rate ◽

Board Process

Considering mature printed circuit board processes, researches on microfluidic pumps that can be integrated into printed circuit board will provide a solution for further miniaturization and integration of microfluidic systems with low costs. The principle and structure of a printed circuit board process–based piezoelectric microfluidic pump integrated into printed circuit board are proposed and realized in this article. The printed circuit board process–based design and manufacturing technology of a piezoelectric microfluidic pump integrated into printed circuit board is researched utilizing printed circuit board as a platform. The flow characteristics of the fabricated microfluidic pump are experimentally tested. The research results show that the proposed principle and structure of the piezoelectric microfluidic pump can be fabricated utilizing mature printed circuit board process with advantages of simple structure and convenient processing. The fabricated printed circuit board process–based microfluidic pump can linearly pump in and pump out fluid with self-injection. Moreover, the flow rate and back pressure can be controlled by changing the peak-to-peak value, frequency, and phase difference of the driving voltages. The instantaneous flow rate has the pulsation property consistent with the drive voltage frequency. The proposed principle and structure are beneficial to integrate the fabricated printed circuit board process–based microfluidic pump with other microfluidic components to realize complicated microfluidic systems on printed circuit board.

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