Antenna impedance matching for maximum power transfer in wireless sensor networks

2009 ◽  
Author(s):  
Trevor S. Bird ◽  
Nicholas Rypkema ◽  
Ken W. Smart
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Impedance Matching ◽  
Maximum Power ◽  
Wireless Sensor ◽  
Power Transfer ◽  
Antenna Impedance

scholarly journals Many-Objective Automated Optimization of a Four-Band Antenna for Multiband Wireless Sensor Networks

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3309 ◽  
Author(s):  
Łukasz Januszkiewicz ◽  
Paolo Di Barba ◽  
Łukasz Jopek ◽  
Sławomir Hausman
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Impedance Matching ◽  
Radiation Efficiency ◽  
Ultra Wideband ◽  
Wireless Sensor ◽  
Initial Design ◽  
Antenna Performance ◽  
Final Design ◽  
Automated Optimization

This paper describes a new design and an optimization framework for a four-band antenna to be used in wireless sensor networks. The antenna is designed to operate effectively in two open frequency bands (ISM—Industrial, Scientific, Medical), 2.4 GHz and 5.8 GHz, as well as in two bands allocated for the fifth-generation (5G) cellular networks, 0.7 GHz and 3.5 GHz. Our initial design was developed using the trial and error approach, modifying a circular disc monopole antenna widely used in ultra wideband (UWB) systems. This initial design covered the three upper bands, but impedance matching within the 700 MHz band was unsatisfactory. The antenna performance was then improved significantly using an optimization algorithm that applies a bi-objective fully-Paretian approach to its nine-parameter geometry. The optimization criteria were impedance matching and radiation efficiency. The final design exhibits good impedance matching in all four desired bands with the Voltage Standing Wave Ratio (VSWR) value below 2 and radiation efficiency of 88%. The simulated antenna performance was verified experimentally.

scholarly journals On the Parameters consideration & analysis of menderline antenna for wireless sensor networks

2018 ◽  
Vol 7 (2.23) ◽  
pp. 201
Author(s):  
Harish Rajurkar ◽  
Dr Sudhir Akojwar
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Wireless Sensors ◽  
Return Loss ◽  
Impedance Matching ◽  
Wireless Sensor ◽  
Antenna Performance ◽  
Monopole Antennas ◽  
Optimum Geometry ◽  
Geometric Size

The objective of this paper is to present an analysis of menderline monopole antennas, which are applicable to wireless sensor networks in agricultural. In this paper, a 2.4 GHz Menderline Monopole Antenna (MLMA) is proposed for wireless sensors network. This work presents the detailed analysis of menderline antenna and variation of mender line parameter on antenna performance. A MLMA is modeled at 2.4 GHz with substrate of FR4 with dielectric constant (εr) of 4.4. The performance of the MLMA is enhanced by using optimum geometry. The better performance in terms of bandwidth and impedance matching is found. For the proposed MLMA, the bandwidth of 149MHz and return loss of -23.98dB is obtained. The proposed work shows good performance of MLMA, in terms of geometric size, bandwidth and return loss which makes it suitable for wireless sensor network. 

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