Controlling The Radiation Pattern of Patch Antenna Using Switchable EBG

Abdulhameed, M. K.; Isa, Mohd Sa'ari Mohamad; Zakaria, Zahriladha; Mohsin, Mowafak K.

doi:10.12928/telkomnika.v16i5.10443

Cited by 9 publications

(9 citation statements)

References 19 publications

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“…In this way, the patches can be controlled individually. The total input impedance of the antenna when the PIN diodes are ON can be calculated as [31].…”

Section: Control Cell Configurationmentioning

confidence: 99%

Electronically controlled radiation pattern leaky wave antenna array for (C band) application

et al. 2019

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This paper provides an insight of a new, leaky-wave antenna (LWA) array. It holds the ability to digitally steer its beam at a fixed frequency by utilizing only two state of bias voltage. This is done with acceptable impedance matching while scanning and very little gain variation. Investigation is carried out on LWAs' control radiation pattern in steps at a fixed frequency via PIN diodes switches. This study also presents a novel half-width microstrip LWA (HWMLWA) array. The antenna is made up of the following basic structures: two elements and reconfigurable control cell with each being comprised of two diodes and two triangle patches. A double gap capacitor in each unit cell is independently disconnected or connected via PIN diode switch to achieve fixed-frequency control radiation pattern. The reactance profile at the microstrip's free edge and thus the main beam direction is changed once the control-cell states are changed. The main beam may be directed by the antenna between 61 o and 19 o at 4.2 GHz. C band achieved the measured peak gain of the antenna of 15 dBi at 4.2 GHz beam scanning range.

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“…In this way, the patches can be controlled individually. The total input impedance of the antenna when the PIN diodes are ON can be calculated as [31].…”

Section: Control Cell Configurationmentioning

confidence: 99%

Electronically controlled radiation pattern leaky wave antenna array for (C band) application

et al. 2019

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“…The half-width microstrip leaky-wave antenna (HW-MLWA) is suitable for most applications, for example, point to multipoint communications, automotive aircraft radar. Most of the radiation leaky-wave antenna has been controlled by varying the operation frequency deadening of the frequency bands [6]- [8]. The direction of the beam scanning is directed by changing the operation frequency.…”

Section: Introductionmentioning

confidence: 99%

Increasing radiation power in half width microstrip leaky wave antenna by using slots technique

Abdulhameed

Hashim

Abdalhameed³

et al. 2022

IJECE

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<p class="Default">The radiation power in the endfire is decreased while the main beam of half substrate integrated waveguide scan from broadside to endfire in a forward. The design of half-width microstrip leaky-wave antenna (HW-MLWA) has been presented in this work to increase the power radiation near endfire by using the slots technique in the radiation element. This slot leads to a decrease the cross-polarization. The proposed design comprises one element of HW-MLWA with repeated meandered square slots in the radiation element. One aspect of this antenna is generated by using a half substrate integrated waveguide with a full tapered feed line. The proposed antenna was terminated by load of 50 Ω, and feed on the other end of the antenna. Finally, the suggested design is simulated and acceptable results were found. The released gain is increased from 10.6 dBi to 12 dBi at 4.3 GHz. This design is suitable for unmanned aerial vehicle UAVs at C band application.</p>

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“…The mushroom like EBG surface has been illustrated in [3] and the other explanation in [4] was the uni planar EBG. The feature of surface-waves suppression supports to reducing backward direction and the amount of power wasted [5,6], leads to improve antenna performance [7,8] by raising the gain of the antenna [9,10] and reduction in antenna size [11].…”

Section: Introductionmentioning

confidence: 99%

Side lobe reduction in array antenna by using novel design of EBG

Abdulhameed¹,

Isa²,

Ibrahim³

et al. 2020

IJECE

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<p>A novel design of EBG is used to replace the mushroom like EBG for surrounding the array patch antenna. In order to improve its radiation performances, Electromagnetic band stop for reducing the surface waves effects is presented. The novel design of Triple Side Slotted EBG (TSSEBG) showed an improvement in the antenna efficiency, directivity and gain as compared to the reference antenna without using EBG, due to reduce the surface waves effects which leads to decrease the side lobes. TSSEBG has been introduced by some modifications in conventional mushroom-like EBG structure. Reducing the complexity was achieved by reducing the number of unit cells and vias, in case of used TSSEBG instead of mushroom like EBG. Additionally, the TSSEBG provided triple band gap compared with mushroom like EBG structure which had only one band gap frequency at 6 GHz. The placement of TSSEBG is a flexible structure which provides a good choice in the antenna applications. The simulation results of array patch antenna with and without mushroom like EBG and TSSEBG are arranged in Table 1. This structure has vast applications in satellite communications.</p>

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Controlling The Radiation Pattern of Patch Antenna Using Switchable EBG

Cited by 9 publications

References 19 publications

Electronically controlled radiation pattern leaky wave antenna array for (C band) application

Electronically controlled radiation pattern leaky wave antenna array for (C band) application

Increasing radiation power in half width microstrip leaky wave antenna by using slots technique

Side lobe reduction in array antenna by using novel design of EBG

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