Wide bandwidth and small size LPDA antenna

Moallemizadeh, Amir; Hassani, Hamid Reza; Nezhad, S. Mohammad Ali

doi:10.1109/eucap.2012.6206312

Cited by 21 publications

(6 citation statements)

References 8 publications

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“…Another attempt to miniaturize the conventional PLPDA was demonstrated in [36] using second-order Koch fractals. This reference shows how higher-order Koch fractals can be generated using four iterations.…”

Section: Fractal-iterative Techniquementioning

confidence: 99%

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Design and Optimization of Compact Printed Log-Periodic Dipole Array Antennas with Extended Low-Frequency Response

Mistry¹,

Lazaridis

Zaharis

et al. 2021

Electronics

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This paper initially presents an overview of different miniaturization techniques used for size reduction of printed log-periodic dipole array (PLPDA) antennas, and then continues by presenting a design of a conventional PLPDA design that operates from 0.7–8 GHz and achieves a realized gain of around 5.5 dBi in most of its bandwidth. This antenna design is then used as a baseline model to implement a novel technique to extend the low-frequency response. This is completed by replacing the longest straight dipole with a triangular-shaped dipole and by optimizing the four longest dipoles of the antenna using the Trust Region Framework algorithm in CST. The improved antenna with extended low-frequency response operates from 0.4 GHz to 8 GHz with a slightly reduced gain at the lower frequencies.

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Section: Fractal-iterative Techniquementioning

confidence: 99%

“…This PLPDA operates from 2 GHz to 8 GHz and has an average gain of 5.8 dBi. Figure 5 shows the iterative process used to obtain the second-order Koch fractals in [36].…”

Section: Fractal-iterative Techniquementioning

confidence: 99%

Design and Optimization of Compact Printed Log-Periodic Dipole Array Antennas with Extended Low-Frequency Response

Mistry¹,

Lazaridis

Zaharis

et al. 2021

Electronics

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show abstract

“…LPDA miniaturization methods are mainly focused on low-frequency dipoles. In order to reduce the length of the dipole unit, many methods, including meandering line technology [2], fractal technology [3][4][5], loading technology etc. have been taken to reduce the size of antenna.…”

Section: Introductionmentioning

confidence: 99%

Research on Miniaturization of Log-periodic Dipole Arrays Using Folded Dipole

Fu-lin

Jin

2018

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. Log-Periodic Dipole Array (LPDA) is an ultra-wideband antenna with frequency-independent properties. It is widely used in radar, electronic warfare and other fields. Through summarizing the predecessors' LPDA design theory, A LPDA operating in 1GHz ~ 10GHz was proposed in this paper. A miniaturization method was presented by folding the dipole of low frequency. Compared with the original antenna, the miniaturized antenna reduced the lateral size by 25%. Meanwhile, the S 11 parameter is less than -10dB in the operating band. And gain about 5 dB can be obtained in the same frequency band.

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“…Then, UWB antenna designs have been widely investigated because a UWB antenna is one of the important components to create a UWB communication system. Many UWB antennas have been put forward to carry out wide bandwidth in the past few years, which includes uniplanar and planar antennas [8][9][10][11][12]. In sequel, planar microstrip antennas have been extensively developed because of their low cost and easy fabrication.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable Antennas for UWB Cognitive Radio Communication Applications

Li¹,

Wang²

2017

Cognitive Radio

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In this chapter, reconfigurable antennas are reviewed for ultra-wideband (UWB) cognitive radio communication applications. The defected microstrip structure (DMS) has been reviewed and integrated into the UWB antennas to form the desired filtering antennas which can filter out unexpected narrowband signal interferences. Then, switches are incorporated into the filtering UWB antennas to construct the cognitive radio UWB (CR-UWB) antenna to make the antenna switch between the UWB antenna and band-notched UWB antenna. In these CR-UWB antennas, the DMSs are to give the desired notches while the switches are used for realizing the switchable characteristics. Several reconfigurable antennas and CR-UWB antennas are created and investigated. The results show that the designed CR-UWB antenna can switch between different modes, making it amazing for UWB, band-notched UWB, and multiband communication system applications.

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Wide bandwidth and small size LPDA antenna

Cited by 21 publications

References 8 publications

Design and Optimization of Compact Printed Log-Periodic Dipole Array Antennas with Extended Low-Frequency Response

Design and Optimization of Compact Printed Log-Periodic Dipole Array Antennas with Extended Low-Frequency Response

Research on Miniaturization of Log-periodic Dipole Arrays Using Folded Dipole

Reconfigurable Antennas for UWB Cognitive Radio Communication Applications

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