Dimension reduction of conical horn antennas by adding structure of metamaterial

Wongsan, R.; Duangtang, Pumipong; Mesawad, Piyaporn

doi:10.1109/apwimob.2015.7374957

Cited by 1 publication

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A conventional circular horn antenna with a gain of 18.1 dB was used for C-band radar. When being combined with a planar mushroom EBG type conventional circular horn operating in a frequency range from 5 GHz, it had an average gain of 19.7 dB [15]. Another conventional circular horn antenna with a gain of 17.7 dB was used for X-band radar in combination with a double-wire EBG type conventional circular horn.…”

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%

See 1 more Smart Citation

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

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.

show abstract

Section: Introductionmentioning

confidence: 99%