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Full-Text Articles in Engineering
A Printed Yagi Antenna For Cubesat With Multi-Frequency Tilt Operation, Sining Liu, Raad Raad, Panagiotis Theoharis, Faisel Em M Tubbal
A Printed Yagi Antenna For Cubesat With Multi-Frequency Tilt Operation, Sining Liu, Raad Raad, Panagiotis Theoharis, Faisel Em M Tubbal
Faculty of Engineering and Information Sciences - Papers: Part B
In this paper, a printed Yagi antenna with an integrated balun is proposed for CubeSat communications. The printed antenna is mechanically adjustable to realize three functional states at different operating frequencies in the L‐band and S‐band respectively. Three different angle deployments are proposed at 10°, 50° and 90°, so that the antenna operates at three different operating frequencies, namely 1.3 GHz (L‐band), 2.4 GHz (S‐band) and 3 GHz (S‐band). The measured results of the fabricated antenna are well matched with the simulation, having frequencies of 2.82–3.07 GHz, 1.3–1.4 GHz and 2.38–2.57 GHz, with similar radiation patterns. The measured gain of …
A 3d Printed Monolithic Soft Gripper With Adjustable Stiffness, Rahim Mutlu, Charbel Tawk, Gursel Alici, Emre Sariyildiz
A 3d Printed Monolithic Soft Gripper With Adjustable Stiffness, Rahim Mutlu, Charbel Tawk, Gursel Alici, Emre Sariyildiz
Faculty of Engineering and Information Sciences - Papers: Part B
Soft robotics has recently gained a significant momentum as a newly emerging field in robotics that focuses on biomimicry, compliancy and conformability with safety in near-human environments. Beside conventional fabrication methods, additive manufacturing is a primary technique to employ to fabricate soft robotic devices. We developed a monolithic soft gripper, with variable stiffness fingers, that was fabricated as a one-piece device. Negative pressure was used for the actuation of the gripper while positive pressure was used to vary the stiffness of the fingers of the gripper. Finger bending and gripping capabilities of the monolithic soft gripper were experimentally tested. Finite …
Parametric Investigation Of Near End And Far End Crosstalks In Printed Circuit Board Lands, Md Masud Rana, Md Rabiul Islam, Md Kamal Hosain
Parametric Investigation Of Near End And Far End Crosstalks In Printed Circuit Board Lands, Md Masud Rana, Md Rabiul Islam, Md Kamal Hosain
Faculty of Engineering and Information Sciences - Papers: Part B
Multi-conductor transmission line and interconnect carry signals with wide rage of frequencies from sending end to receiving end. The signal in one transmission line may be interupted by the unwanted contributions from the neighboring line conductors. If data speed increases, high frequency effects occur and the signals suffer from difficulties such as ringing, crosstalk, reflections, and ground bounce that seriously hamper the quality of the received signal. In order to estimate the signal quality, signal integrity analysis is needed. In this paper, an attempt has been made to investigate the sensitivity of the near and far end crosstalk on the …