Dual-Frequency Folded-Parallel-Plate Antenna With Large Frequency Ratio

Feng, Li Ying; Leung, Kwok Wa

doi:10.1109/tap.2015.2500607

Cited by 51 publications

(22 citation statements)

References 8 publications

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“…The antenna performance of SPA‐OE‐DGS was compared to previously reported dual‐frequency antennas and summarized in Table . The SPA‐OE‐DGS in this work has high peak gains of 6.8 dBi and 12 dBi at the lower‐frequency and upper‐frequency bands, respectively, while achieving high | S 21 | (>31 dB) with a small form factor as compared to other previously reported dual‐frequency antennas . In addition, due to having multiple antenna elements, the studied antenna can be further developed to have beam steering functionality at an upper‐frequency band.…”

Section: Resultsmentioning

confidence: 81%

“…To enable DSRC and 5G networks simultaneously, the antenna needs to be operational at dual‐frequency bands. Recently, dual‐band antennas, which have a frequency ratio ( f H / f L , where f H and f L are the upper and lower operating frequency, respectively) greater than 3, have been extensively studied . These reported dual‐band antennas do not provide the multi‐operating modes of a single antenna, such as a multiband antenna, because of the harmonics of the antenna at upper‐frequency bands .…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, two antennas were closely placed or integrated to operate at dual‐band with a high frequency ratio. In References , a dual‐feed dual‐band stacked patch antenna operates at both 2.5 and 8.2 GHz bands, and folded‐parallel‐plate antenna covers both 2.4 and 24 GHz. However, these antennas show a high profile of 1.8 λ H (64 mm) and 1.73 λ H (21.57 mm), respectively, where λ H is the air wavelength of the highest frequency.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, for 5G, a beam steering functionality is essential to obtain a broad communication coverage. However, it is noted that the dual‐band antenna in References would have difficulty in meeting beam steering functionality, due to having a single antenna element.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, dual-band antennas, which have a frequency ratio (f H /f L , where f H and f L are the upper and lower operating frequency, respectively) greater than 3, have been extensively studied. [5][6][7][8] These reported dual-band antennas do not provide the multi-operating modes of a single antenna, such as a multiband antenna, 9,10 because of the harmonics of the antenna at upper-frequency bands. 7,8 Therefore, two antennas were closely placed or integrated to operate at dual-band with a high frequency ratio.…”

mentioning

confidence: 99%

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Dual‐band (5G millimeter‐wave and dedicated short‐range communication) stacked patch antenna for advanced telematics applications

Lee

Hong

Won

et al. 2019

Micro & Optical Tech Letters

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The designed and fabricated patch antenna covers both dedicated short‐range communication (DSRC) and Fifth Generation (5G) millimeter‐wave (mmW) bands for advanced telematics. The fabricated antenna has a small volume of 2.7λH × 2.6λH × 0.15λH, where λH is the air wavelength of the highest operating frequency. The antenna performances, such as S‐parameters, the realized gain at boresight (RG00), antenna radiation efficiency, and radiation patterns, are reported. The simulated results are in good agreement with the measured ones. Despite the fabricated antenna's compactness, port isolation higher than 31 dB was achieved. Not only high RG00s of 6.8 and 12 dBi were obtained at DSRC and 5G mmW bands, respectively, but also an efficiency greater than 90% was observed at both frequency bands. Lastly, the fabricated antenna shows better performance than the previously reported dual‐band antennas.

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Section: Resultsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Dual‐band (5G millimeter‐wave and dedicated short‐range communication) stacked patch antenna for advanced telematics applications

Lee

Hong

Won

et al. 2019

Micro & Optical Tech Letters

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A tri‐band shared‐aperture antenna combining two sub‐6G and one millimeter‐wave bands with shared feeding port for 5G / B5G applications

Yang

et al. 2022

Int J RF Mic Comp-Aid Eng

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A tri‐band shared‐aperture antenna operating at both the sub‐6G and millimeter‐wave bands is proposed for 5G/B5G communications. It is small in size owing to the structure sharing technique. Four longitudinal slots are etched on the top of a substrate integrated waveguide (SIW), forming a millimeter‐wave antenna operating at 28 GHz. Meanwhile, the outer conductor of the entire SIW is used to realize a monopole antenna that can operate at 3.5 and 4.9 GHz, respectively. The structure reuse efficiency of the monopole radiating area is about 80%. A tri‐band microstrip line to SIW transition is proposed to excite different transmission modes in the sub‐6G and millimeter‐wave bands, thus, realizing the proposed large frequency ratio tri‐band antenna with a single shared port. A prototype of the proposed antenna is fabricated and measured, and the measured results agree well with the simulated ones, validating the correctness of this design.

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