Characteristic mode analysis of harmonic suppressed stepped impedance strip dipole antenna

2021 ◽  
Author(s):  
Manoj Mani ◽  
Remsha Moolat ◽  
Mohanan Pezholil
Keyword(s):  
Dipole Antenna ◽  
Mode Analysis ◽  
Characteristic Mode ◽  
Impedance Strip

scholarly journals Algorithm for the Fewest Arms Required by Multi-Band Linear Dipole Antenna

2021 ◽  
Author(s):  
Bing Xiao
Keyword(s):  
Dipole Antenna ◽  
Mode Analysis ◽  
Dipole Antennas ◽  
Characteristic Mode ◽  
Antenna Structure ◽  
Band Characteristic ◽  
Iot Devices ◽  
Linear Dipole ◽  
The Internet Of Things ◽  
Multi Band

Small linear dipole antennas with a multi-band characteristic are necessary for many strip or bar shaped gateway devices of the Internet of Things (IoT), for the connectivity in various communication protocols. However, the conventional methodology of designing multi-band dipole antennas is generally empirically based. More frequency bands usually mean even more arms/slots, which results in an increasingly bulky antenna. In this paper, we will introduce an algorithm of using the fewest arms to design a multi-band linear dipole antenna. This algorithm is based on sharing arms after the effective ranges of mode excitation are determined by characteristic mode analysis (CMA). By this algorithm, an exemplified designed penta-band dipole antenna is effective in covering 433, 868, 1176, 1575, and 2450 MHz bands for LPWAN, GNSS, and ISM applications, with only 2.5 pairs of arms. 50% of arms are reduced in comparison to traditional methods. This algorithm is convenient in practical dipole antenna design, and greatly simplifies the antenna structure so that they could be mounted into small IoT devices.

Characteristic Mode Analysis of U-Shaped Folded Dipole Antenna for WiMAX

2019 ◽  
Author(s):  
Quang Quan Phung ◽  
Tuan Hung Nguyen ◽  
Naobumi Michishita ◽  
Hiroshi Sato ◽  
Yoshio Koyanagi ◽  
...  
Keyword(s):  
Dipole Antenna ◽  
Mode Analysis ◽  
Characteristic Mode ◽  
Folded Dipole

scholarly journals Algorithm for the Fewest Arms Required by Multi-Band Linear Dipole Antenna

2021 ◽  
Author(s):  
Bing Xiao
Keyword(s):  
Dipole Antenna ◽  
Mode Analysis ◽  
Dipole Antennas ◽  
Characteristic Mode ◽  
Antenna Structure ◽  
Band Characteristic ◽  
Iot Devices ◽  
Linear Dipole ◽  
The Internet Of Things ◽  
Multi Band

Small linear dipole antennas with a multi-band characteristic are necessary for many strip or bar shaped gateway devices of the Internet of Things (IoT), for the connectivity in various communication protocols. However, the conventional methodology of designing multi-band dipole antennas is generally empirically based. More frequency bands usually mean even more arms/slots, which results in an increasingly bulky antenna. In this paper, we will introduce an algorithm of using the fewest arms to design a multi-band linear dipole antenna. This algorithm is based on sharing arms after the effective ranges of mode excitation are determined by characteristic mode analysis (CMA). By this algorithm, an exemplified designed penta-band dipole antenna is effective in covering 433, 868, 1176, 1575, and 2450 MHz bands for LPWAN, GNSS, and ISM applications, with only 2.5 pairs of arms. 50% of arms are reduced in comparison to traditional methods. This algorithm is convenient in practical dipole antenna design, and greatly simplifies the antenna structure so that they could be mounted into small IoT devices.

scholarly journals Broadband design of U-shaped folded dipole antenna for WiMAX by using characteristic mode analysis

2019 ◽  
Vol 8 (8) ◽  
pp. 347-352
Author(s):  
Quang Quan Phung ◽  
Tuan Hung Nguyen ◽  
Naobumi Michishita ◽  
Hiroshi Sato ◽  
Yoshio Koyanagi ◽  
...  
Keyword(s):  
Dipole Antenna ◽  
Mode Analysis ◽  
Characteristic Mode ◽  
Folded Dipole

scholarly journals Bandwidth Optimization of a Textile PIFA with DGS Using Characteristic Mode Analysis

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2516
Author(s):  
Bashar Bahaa Qas Elias ◽  
Ping Jack Soh ◽  
Azremi Abdullah Al-Hadi ◽  
Prayoot Akkaraekthalin ◽  
Guy A. E. Vandenbosch
Keyword(s):  
Wireless Body Area Network ◽  
Simulation Software ◽  
The Body ◽  
Mode Analysis ◽  
Area Network ◽  
Defected Ground Structure ◽  
Characteristic Mode ◽  
Antenna Structure ◽  
Rectangular Patch ◽  
Conventional Optimization

This work presents the design and optimization of an antenna with defected ground structure (DGS) using characteristic mode analysis (CMA) to enhance bandwidth. This DGS is integrated with a rectangular patch with circular meandered rings (RPCMR) in a wearable format fully using textiles for wireless body area network (WBAN) application. For this integration process, both CMA and the method of moments (MoM) were applied using the same electromagnetic simulation software. This work characterizes and estimates the final shape and dimensions of the DGS using the CMA method, aimed at enhancing antenna bandwidth. The optimization of the dimensions and shape of the DGS is simplified, as the influence of the substrates and excitation is first excluded. This optimizes the required time and resources in the design process, in contrast to the conventional optimization approaches made using full wave “trial and error” simulations on a complete antenna structure. To validate the performance of the antenna on the body, the specific absorption rate is studied. Simulated and measured results indicate that the proposed antenna meets the requirements of wideband on-body operation.

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