Design of Compact Wideband Serpentine Patch Antenna for Ingestible Endoscopic Applications

Abstract

A miniaturized serpentine patch antenna is presented for Industrial, Scientific and Medical band (2.4-2.48 GHz) applications. The proposed antenna is fabricated on a Rogers RT/duroid5880 substrate having permittivity of 2.2 and loss tangent of 0.0009. In comparison with other traditional structures, this antenna has an electrical length of 0.961λ with 29.2% impedance bandwidth which is advantageous for higher data rate transmission. In order to test the performance, the proposed antenna is tested in a silicone feeding tube. The simulated and measured results show good agreement with each other. Defected ground structure is also incorporated to enhance the performance of the proposed structure. All the simulations have been carried out on FDTD based Empire XCcel tool.

A Review of Miniaturized Advanced IC Rectenna for Energy Harvesting Applications

“…The most common structures for IMD antennas are micro-strip radiators, such as Planar-Inverted-F-Antenna (PIFA) due to small volumes [48], multilayer PIFA structures [49], monopoles, dipoles, and loop antennas. Several structures of the implantable antennas design can be used to get miniaturization process such as serpentines [50], and spiral structure [51] developed by Le Trong in 2021 [52] by using an open-ended slot at the ground for human head-implantable wireless communications utilizing a triple band antenna.…”

A Dual-Band Compact Integrated Rectenna for Implantable Medical Devices

“…Also, In order to improve the performance of the implant antenna inside human tissue, It should be taken into consideration the interaction between embedded antennas and biological tissues which represent electrical permittivity (ε) and electrical conductivity (σ) [19]. Several structures of the implantable antennas design can be used to get miniaturization process such as serpentines [20], and spiral structure [21] is developed by Le Trong in 2021 [22] by using an open-ended slot at the ground for human head-implantable wireless communications utilizing a triple band antenna. Meander structure is reported in [23] and developed by Nikta in 2021 [24], fractal geometries [25], Flower-shape radiating patch [26], Circular Maze shaped [27], and several geometries shaped radiator are suggested in [28][29] [30] for energy harvesting applications.…”