Nonuniform Broadband Circularly Polarized Antenna Array for Vehicular Communications

Varum, Tiago; Matos, João N.; Pinho, Pedro; Abreu, Ricardo

doi:10.1109/tvt.2015.2500520

Cited by 41 publications

(29 citation statements)

References 11 publications

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“…Finally, in reference [8], an antenna that overcomes the main problems revealed by the other reported antennas is shown, largely fulfilling the constraints of DSRC standards. Despite its design complexity, this 12 element array has a single-layer structure, which allows for simplicity of manufacture and reduced cost, as well as low weight and volume.…”

Section: Introductionmentioning

confidence: 95%

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Non-Uniform Microstrip Antenna Array for DSRC in Single-Lane Structures

Varum

Matos

Pinho

2016

Sensors

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Vehicular communications have been subject to a great development in recent years, with multiple applications, such as electronic payments, improving the convenience and comfort of drivers. Its communication network is supported by dedicated short range communications (DSRC), a system composed of onboard units (OBU) and roadside units (RSU). A recently conceived different set-up for the tolling infrastructures consists of placing them in highway access roads, allowing a number of benefits over common gateway infrastructures, divided into several lanes and using complex systems. This paper presents an antenna array whose characteristics are according to the DSRC standards. Additionally, the array holds an innovative radiation pattern adjusted to the new approach requirements, with an almost uniform wide beamwidth along the road width, negligible side lobes, and operating in a significant bandwidth.

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Section: Introductionmentioning

confidence: 95%

“…Some antenna arrays targeted to RSU of DSRC systems are proposed [2,3,4,5,6,7,8]. It is presented a 4 × 4 right hand circularly polarized antenna array, with microstrip elements having an H-shape with a T-slot [2].…”

Section: Introductionmentioning

confidence: 99%

Non-Uniform Microstrip Antenna Array for DSRC in Single-Lane Structures

Varum

Matos

Pinho

2016

Sensors

Self Cite

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“…To realize the DSRC communication, two types of equipment are required: the onboard unit (OBU) placed inside the vehicle and the roadside unit (RSU) located on the part of infrastructure. For the OBU, an omnidirectional pattern is needed to send or receive information in all directions, whereas for the RSU, a directional radiation pattern is necessary …”

Section: Introductionmentioning

confidence: 99%

“…For the OBU, an omnidirectional pattern is needed to send or receive information in all directions, whereas for the RSU, a directional radiation pattern is necessary. 2,3 Recently, automotive industries have been investigating fifth generation (5G) wireless communication to accommodate mobile entertainment and/or fully autonomous systems, which cannot be realized by DSRC. To facilitate this need, the U.S. Federal Communication Commission (FCC) announced the frequency spectrum above 24 GHz bands, including 27.5-28.5 GHz, 37-39 GHz, and 64-71 GHz, on July 14, 2016.…”

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confidence: 99%

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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“…Circular polarization is desired for many radio systems, such as mobile satellite communication, intelligent transportation, and microwave power transmission (MPT) systems [1,2]. Single-layer planar CP antennas are suitable for those systems due to their low profile, light weight, and possible conformity to the curved surface of aircrafts [3].…”

Section: Introductionmentioning

confidence: 99%

Circularly Polarized Antenna Array Fed by Air-Bridge Free CPW-Slotline Network

Liu

Luo

2017

International Journal of Antennas and Propagation

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A novel design of 1×2 and 2×2 circularly polarized (CP) microstrip patch antenna arrays is presented in this paper. The two CP antenna arrays are fed by sequentially rotated coplanar waveguide (CPW) to slotline networks and are processed on 1 mm thick single-layer FR4 substrates. Both of the two arrays are low-profile and lightweight. An air-bridge free CPW-slotline power splitter is appropriately designed to form the feeding networks and realize the two CP antenna arrays. The mechanism of circular polarization in this design is explained. The simulated and measured impedance bandwidths as well as the 3 dB axial ratio bandwidths and the radiation patterns of the two proposed antenna arrays are presented. This proposed design can be easily extended to form a larger plane array with good performance owing to its simple structure.

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Nonuniform Broadband Circularly Polarized Antenna Array for Vehicular Communications

Cited by 41 publications

References 11 publications

Non-Uniform Microstrip Antenna Array for DSRC in Single-Lane Structures

Non-Uniform Microstrip Antenna Array for DSRC in Single-Lane Structures

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

Circularly Polarized Antenna Array Fed by Air-Bridge Free CPW-Slotline Network

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