A Half-cut Microstrip Slot Antenna for Implantable Devices at ISM Band

Author(s):  
Peng Li ◽  
Zhe Wang ◽  
Haowei Kang ◽  
Shuqi Huang ◽  
Bowen Yan ◽  
...  
2013 ◽  
Vol 6 (2) ◽  
pp. 167-172 ◽  
Author(s):  
Srinivasan Ashok Kumar ◽  
Thangavelu Shanmuganantham

A novel coplanar waveguide fed Industrial, Scientific, and Medical (ISM) band implantable crossed-type triangular slot antenna is proposed for biomedical applications. The antenna operates at the center frequency of 2450 MHz, which is in ISM band, to support GHz wideband communication for high-data rate implantable biomedical application. The size of the antenna is 78 mm3 (10 mm × 12 mm × 0.65 mm). The simulated and measured bandwidths are 7.9 and 8.2% at the resonant frequency of 2.45 GHz. The specific absorption rate distribution induced by the implantable antenna inside a human body tissue model is evaluated. The communication between the implanted antenna and external device is also examined. The proposed antenna has substantial merits such as miniaturization, lower return loss, better impedance matching, and high gain over other implanted antennas.


This paper introduces a new hybrid E/F power amplifier for subcutaneous applications. The proposed design is based on Amplitude Shift Keying (ASK) modulation technique with Industrial Scientific Medical (ISM) band operating at 135 kHz to avoid the tissue damage. The Hybrid E/F power amplifier combines the tuning network circuits and uses a control unit to control a selectable switch to choose the desired amplifier. The Amplitude Shift Keying modulator is proposed to supply the proposed hybrid amplifier with approximately constant DC voltage. The proposed power amplifier aims to provide an appropriate power to power the implantable devices and reduce the hardware of the subcutaneous devices depending on the specific applications


Sign in / Sign up

Export Citation Format

Share Document