Gain enhancement for conventional circular horn antenna by using EBG technique

Wongsan, R.; Krachodnok, P.; Kampeephat, Saran; Kamphikul, Paowphattra

doi:10.1109/ecticon.2015.7207041

Cited by 6 publications

(12 citation statements)

References 7 publications

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“…The comparison, as shown in Table 5, demonstrated that the compared study had advantages in terms of the size of the structure of the EBG. The distance from the dipole antenna to the EBG in all works was small, except [9] and [14] which both had a distance of 49.5 cm. The gain was greater than the other compared works, except [19] because it is designed for application in goat manure moisture content and bulk density monitoring, whose centanna and the prototype woodpile shape also had the advantage of being simple in design.…”

Section: Comparison Between the Prototype Antenna And Antennas From P...mentioning

confidence: 94%

“…From the above simulation results, a new layout to find the best gain was Transverse Electric (TE) polarization and Transverse Magnetic (TM) polarization as shown in Figure 4(a). The arrangement was done in front of the cantenna [14] with 1 × 6 units of EBG, by adjusting the distance (h 3 ) to find the best distance with wavelength values ranging from 0.086λ < h 3 < 0.43λ, and the distance is −3 cm to 5 cm, in which the distances of −3 cm and −1 cm are the placement in the waveguide as shown in Figure 4(b). From the adjustment, it was found that the TE arrangement was the most effective.…”

Section: Antenna Structure Designmentioning

confidence: 99%

“…A dual-polarization-switching cantenna used for wireless power transmitter for LED accessories operating in a 2.45 GHz frequency range had an average gain of 12.2 dBi [13]. A conventional circular horn antenna used for X-band radar and I-band beyond the IEEE and ITU in combination with a woodpile EBG structure operating in a frequency range of 10 GHz had an average gain of 25.34 dB [14]. A conventional circular horn antenna with a gain of 18.1 dB was used for C-band radar.…”

Section: Introductionmentioning

confidence: 99%

“…According to the above, using a waveguide antenna structure and microstrip antenna in combination with an EBG plate has the advantages of increasing the appropriate gain as needed, but it also has disadvantages in terms of complex structure and large size. From the foregoing, this study focuses in a waveguide antenna structure in combination with I-shaped EBG sheets [14][15][16]29] due to its simple structure (for measuring moisture content and bulk density of goat manure).…”

Section: Introductionmentioning

confidence: 99%

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Cantenna Adjustment with 1x6 Woodpile Shaped EBG for Application in Goat Manure Moisture Content and Bulk Density Monitoring

Naktong¹,

Prapakarn²,

Prapakarn³

et al. 2022

PIER C

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This study aimed to investigate the structural design of a cantenna with Woodpile shaped electromagnetic band gap (EBG) for gain enhancement and to increase the efficiency of signal transmission for measuring the moisture content and the bulk density of goat manure, which can help farmers reduce the cost of buying chemical fertilizers. From the test of operating frequency ranges from 2 to 3 GHz, it was found that the frequency band that responds to humidity the best is 2.60 GHz, increasing the efficiency of the gain with the 6 × 6 cm 2 Woodpile shaped EBG. It was arranged in transverse electric (TE) and placed parallel to the end of the cantenna. This allows the gain to be increased to 9.31 dBi, in which the cantenna structure without EBG has the gain of 7.32 dBi. When the cantenna is used to determine the moisture content (MC) and bulk density, the transmission distance between the cantenna Tx/Rx is 3 cm with an average power rating of 0.0001-0.5 mW. This cantenna can measure humidity in the unit of wet basis (wb.) as low as 0.14%wb., at an average power of 0.5 mW.

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Section: Comparison Between the Prototype Antenna And Antennas From P...mentioning

confidence: 94%

Section: Antenna Structure Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cantenna Adjustment with 1x6 Woodpile Shaped EBG for Application in Goat Manure Moisture Content and Bulk Density Monitoring

Naktong¹,

Prapakarn²,

Prapakarn³

et al. 2022

PIER C

View full text Add to dashboard Cite

show abstract

“…Furthermore, from [9,10], the quadratic-shaped woodpile EBG structure was used to enhance the gain of any horn antenna by its placement at the front of the horn's aperture with optimized spacing. In 2016, Kamphikul and Wongsan [11] continued to develop the cavity of curved woodpile EBG structure for the enhancement of the gain of the slot array antenna instead of increasing the number of slots on the array.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Metamaterial for the Secondary Radar Antenna System

Khamsalee

Mesawad

Wongsan

2020

J Electromagn Eng Sci

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This paper proposes the gain enhancement of dual-band and dual-polarized asymmetric horn antenna for the secondary radar system using hybrid metamaterial techniques. The hybrid metamaterial is comprised of the structures of woodpile electromagnetic bandgap (EBG) for gain enhancement of the primary main beam of the radar system at the operating frequency of 1,300 MHz with horizontal polarization; and the wire medium structure that is placed beside the EBG structure for gain improvement of the identification friend or foe (IFF) main beam, which is operated at the center frequency of 1,060 MHz with vertical polarization. Meanwhile, the cooperated structures have to function to control the directions of the primary and IFF main beams retaining at 0° and 6°, respectively, too. When the hybrid metamaterial structure is placed at the front of an asymmetric horn’s aperture, with suitable parameters and optimized spacing, it is found to increase the gains of the two beams compared to the single asymmetric horn around 3 dB and retain the directions of original main beams. The comparison of the results between simulation and measurement, such as the reflected power (S<sub>11</sub>), gain, and radiation patterns, are in good agreement.

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