Broadband loaded monopole antenna with a novel on-body matching network

Bod, Mohammad; Ahmadi-Boroujeni, Mehdi; Mohammadpour‐Aghdam, Karim

doi:10.1016/j.aeue.2016.09.012

Cited by 10 publications

(10 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Simulations revealed that the resistance in the first antenna load degrades the antenna efficiency in spite of improving the antenna matching. By omitting the resistor from the first on-body antenna load, a good VSWR and acceptable radiation efficiency can be achieved simultaneously [13].…”

Section: Optimisation Of On-body Integrated Loadsmentioning

confidence: 99%

“…It is well known that a simple wire antenna, in the configuration of a monopole or a dipole, is inherently narrowband and has an acceptable efficiency and radiation pattern only near its first resonance frequency [1]. In order to make these antennas broadband, different techniques have been proposed over the past years such as embedding metamaterials along the antenna body [2,3], coating the wire antenna with a dielectric bead [4,5], loading the antenna with RLC circuits [6][7][8][9][10][11][12][13][14] and using the non-Foster matching networks [15][16][17]. Among these methods, RLC loading is more popular due to its broadband behaviour.…”

Section: Introductionmentioning

confidence: 99%

“…More robust and industrial structures of the loaded wire antennas can be found in [12,13]. In [12], an RLC loaded monopole antenna with an on-body RLC matching network is designed for 30-520 MHz.…”

Section: Introductionmentioning

confidence: 99%

“…In [12], an RLC loaded monopole antenna with an on-body RLC matching network is designed for 30-520 MHz. The authors of this paper proposed another loaded antenna with an on-body matching network in [13]. In these works, the antenna matching networks are implemented in a metallic pedestal that supports the antenna structure.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Design of a low‐cost broadband loaded dipole antenna for VHF/UHF frequency range

Bod

Ahmadi-Boroujeni

Mohammadpour‐Aghdam

2019

IET Microwaves, Antennas & Propagation

Self Cite

View full text Add to dashboard Cite

This study describes the concept and design of a low‐cost super broadband dipole antenna with a passive matching network. The proposed dipole antenna is designed in three steps. First, a simple planar dipole antenna with six different loads and a balanced to unbalanced (Balun) transformer is designed by the genetic algorithm optimisation. The position and value of the loads are optimised to achieve an acceptable radiation pattern and voltage standing wave ratio (VSWR) over the desired frequency bandwidth. In the next step, the shape of the printed strip dipole antenna is optimised to improve the frequency response of the designed antenna. Finally, an LC network is added to the antenna feed point to reduce the antenna VSWR at low frequencies. The final dipole antenna has a length of 1.7 m and can operate over 30–1200 MHz with VSWR ˂3 and broadside gain >−10 dBi. The proposed antenna can easily be fabricated at a low cost via the printed circuit board technology. An industrial prototype of the proposed antenna is fabricated and measured. A good agreement between measurement and simulation results is observed.

show abstract

Section: Optimisation Of On-body Integrated Loadsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design of a low‐cost broadband loaded dipole antenna for VHF/UHF frequency range

Bod

Ahmadi-Boroujeni

Mohammadpour‐Aghdam

2019

IET Microwaves, Antennas & Propagation

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the form of a single loading and broadband matching network, the antenna not only achieves good broadband characteristics, but also has high gain and efficiency. The design and implementation of load network and broadband matching network is one of the key technologies [10][11][12][13]. The single-load structure can not only reduce the loss of resistance to the antenna, ensure good antenna efficiency, but also reduce the complexity of the antenna and reduce the difficulty coefficient of structure realization.…”

Section: Introductionmentioning

confidence: 99%

A Novel Broadband Double Whip Antenna for Very High Frequency

Wang¹,

Liu²,

Wu³

et al. 2020

PIER C

View full text Add to dashboard Cite

In this paper, a new type of single loaded broadband double-whip antenna is designed for very high frequency (VHF). The simulation model by moment method is established to analyze the influence of antenna spacing on the performance of a double-whip antenna. The location of antenna loading and the parameters of loading network and broadband matching network are optimized by grasshopper optimization algorithm, and the voltage standing wave ratio (VSWR), gain, pattern, and roundness of double-whip antenna are calculated. In fact, a fabricated prototype of the proposed antenna is realized. The measured VSWR is consistent with the simulation results, which is less than 3 at all frequencies, with an average value of 1.89; the maximum directional gain is greater than 2.01 dB, with a maximum of 6.44 dB and average value of 3.79 dB; the minimum roundness of antenna gain is 0.03 dB (at 3 MHz), and the maximum roundness is 1.87 dB (at 30 MHz); the efficiency is all over 51%, with a maximum value of 79% and an average value of 60.71%.

show abstract