In this paper, a noninvasive bone fracture monitoring system is developed using a planar monopole antenna. The proposed antenna provides an ultra-wideband response, and its overall size is 18 × 19 × 0.8 mm3. The proposed ultra-wideband monopole (UWM) antenna has a maximum measured gain of 3.77 dBi, and the maximum SAR value for an input power of 18 dBm is less than 1.6 (W/kg) (1 g). A bovine tibia is experimentally tested using a proposed UWM antenna to monitor the fracture recovery process and then further analysed using principle component and linear regression analysis. In addition, a microcontroller with a wireless communication module is developed to monitor the data in an Android application. The proposed system could be a promising approach for developing a portable, noninvasive monitoring device.
a low-profile modified elliptical structure ultra-wide-band monopole antenna for skin cancer detection is presented in this paper. The antenna is developed over an FR-4 lossy substrate with permittivity 4.3 and a height of 1.6 mm. The dimensions of antenna is 20 × 28 × 1.6 mm3 and it covers a frequency range of 2.82-12.56 GHz. The proposed antenna consists of elliptical and circular shaped radiators with partial ground plane, to achieve an optimized low profile structure with ultra-wide band. The proposed ultra-wideband antenna(UWB) is used to detect the unhealthy tumor in the skin with the help of time-domain and SAR analysis. The rectangular human skin model with skin, fat, muscle, and bone layers is developed in fullwave simulator. The Proposed UWB antenna is safe for skin exposure as it shows SAR [1g] of 0.296 W/Kg (on skin phantom) at the frequency of 3.4 GHz, respectively. Using time-domain and SAR analysis, the suggested UWB antenna offers a potential alternative to validate the presence of unhealthy tissue in the human body.
Software-Defined Radio (SDR) is a radio communication system where components that have been traditionally implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded system. Reconfigurable Finite Impulse Response (RFIR) filter plays an important role in SDR systems, whose filter co-efficient change dynamically during runtime. In this paper, Low Cost Carry Bypass adder Reconfigurable Finite Impulse Response (LC-CBA-RFIR) is introduced to perform the RFIR filter operations. DRAM-based Reconfigurable Partial Product Generators (DRPPG) consists of MUX and dual port distributed RAM, which has co-efficient to perform a FIR filter operation. With the help of Verilog code, the RFIR filter architecture was verified in Modelsim software. The same Verilog code was used to analyse the FPGA performances such as LUT, flip flop, slice and frequency. After implementing FPGA, all the performance improved in LC-CBA-RFIR method compared to the conventional methods.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.