An improved resonant wireless power transfer system with optimum coil configuration for capsule endoscopy

Energy Efficiency Analysis through Misalignment on New Design of Hexagonal Coil Array in Wireless Power Transfer

“…From our understanding about WPT, it is a very advanced technology to transmit energy with indirect connection between source and destination [1]. Lots of applications are implementing this technology, such as: (1) electric vehicles (EV), (2) capsule endoscopy, (3) power supplies (underwater or beneath the earth) and so on without any affection [1], [2], [3].…”

“…There are 2 types of WPT for EV, such as: (1) WPT static charging where EV needs steady position to charge the battery and (2) dynamic charging where EV can charge continuously the battery in moving condition as far as the railway grid [10]. Wireless charging make battery to have smaller capacity by cutting down up to 20%, so that charging times will be short [11].…”

Comparative analysis of hybrid and traditional resonators for magnetically coupled wireless power transfer

“…1 Due to the advantages of convenience and safety, wireless power transfer shows great potential for extensive application in electric vehicles, consumer electronics and implantable medical devices, and so forth. [2][3][4] Presently, near-field wireless power transfer (WPT) is categorized into magnetically inductive wireless power transfer (MI-WPT) and magnetically coupling wireless power transfer (MC-WPT) depending on different operating mechanism. As an efficient technique, MI-WPT suffers from short transfer distance which is about 1 cmr.…”

“…1 Recently a lot of work has been conducted by researchers using ring resonators to design bandpass filters for use in next generation high-data rate communication systems that require more than 20% fractional bandwidth (FBW), and good passband and out-of-band performance. [1][2][3][4][5][6][7][8] In Ref. [2], two open-circuited stubs are connected to a ring resonator to generate a wide passband depending on the lower and upper attenuation poles, whereas in Ref.…”

“…In Ref. [4] a quintuple wideband bandpass filter employing inter-digital coupled lines at the two excited ports was developed. In Ref.…”