Metamaterial Loaded Microstrip Patch Antenna For Biomedical Applications

Recent growth in medicinal technology requires limited and valuable devices for biomedical applications. In previous years, the research community has shown an enormous pact of attention in proposing medical implantable to analysis various signals inside and outside the human body. To communicate wirelessly, an implantable antenna incorporated in an implantable medical device is needed. On the radiating patch, a unique dual-band microstrip patch antenna is integrated with a metamaterial structure with two L-shaped slots. At both operating frequencies, the integration of the metamaterial structure on the superstrate results in gain improvement. And it is applicable for medical applications, particularly measuring the intracranial pressure, and operates at 915MHz and also 2.45 GHz. The total size of the radiator is 48 x 47 mm2 and is placed on a dielectric constant of FR4 is 4.4, 1.6 mm thickness and the loss tangent of 0.025. The metamaterial structure has a total area of 7 x 6 mm2. The proposed metamaterial-loaded microstrip patch antenna gain value of 2 dBi and the return loss of the proposed antenna has -14 dB & -19 dB. The proposed antenna obtains better performance for the relevant frequency ranges in terms of gain, radiation pattern, return loss, and efficiency.