Single-Feed Dual-Band Stacked Patch Antenna for Orthogonal Circularly Polarized GPS and SDARS Applications

Geary, Kevin; Schaffner, James H.; Hsu, Hsiang-Han; Song, Hang; Colburn, J.S.; Yasan, Eray

doi:10.1109/vetecf.2008.28

Cited by 21 publications

(6 citation statements)

References 3 publications

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“…I, are included within one antenna assembly covered by a common housing. The global positioning system (GPS) and satellite digital audio radio service (SDARS) antenna only receive signals whereas the telephone antenna [6]. For the patch antennas thus both polarizations must be considered as they are circularly polarized.…”

Section: Investigated Antenna Systemmentioning

confidence: 99%

Influence of the vehicle environment on the radiation characteristics of vehicle roof antennas

Mocker

Shu

Fuertes

et al. 2015

2015 German Microwave Conference

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The influence of the vehicle environment on typical radiation patterns of roof antennas for satellite and as well for terrestrial communication is investigated. In order to separate the different effects on the electromagnetic wave, the antenna is simulated on several ground plates. The influence of edges close to the antenna, the curvature of the roof and glass is described. The simulated radiation patterns are compared to measurements carried out with a SATIMO Starlab. Furthermore the simulation of the antenna on a vehicle with near field sources is described.

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Section: Investigated Antenna Systemmentioning

confidence: 99%

Influence of the vehicle environment on the radiation characteristics of vehicle roof antennas

Mocker

Shu

Fuertes

et al. 2015

2015 German Microwave Conference

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“…A simple yet effective solution is based on the use of two microstrip patches in stacked configuration, each of them resonating at one of the desired bands. Two main structures have been proposed in the literature: (i) locating the larger patch below the smaller patch, thus acting as a ground plane for the later [ 11 , 12 , 13 , 14 ]; (ii) locating the larger patch on top, with a hole in the middle that permits the radiation of the smaller patch without disturbances [ 15 , 16 ]. In addition, such systems have been studied with single [ 11 , 12 , 14 , 15 , 16 ] or dual-port [ 13 , 14 ] (i.e., separated ports for each band) configurations, for linear [ 11 ] and circular polarization [ 12 , 13 , 14 , 15 , 16 ], and for the latter case, considering single [ 12 , 15 ], and multiple patch excitations [ 13 , 14 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Circularly Polarized Dual-Band LoRa/GPS Antenna for a UAV-Assisted Hazardous Gas and Aerosol Sensor

et al. 2021

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UAV assisted wireless sensor networks play a key role in the detection of toxic gases and aerosols. UAVs can be used to remotely deploy sensor nodes and then collect gas concentration readings and GPS positioning from them to delimit an affected area. For such purpose, a dual-band communication system is required, supporting GPS reception, and sensor reading data transfer, which is chosen to be at 2.4 GHz using LoRa physical layer. In this work we propose a switched-beam antenna subsystem for the sensor nodes capable not only of satisfying the dual band requirements but also of maximizing communication range or energy consumption through a good antenna polarization match and improved antenna gain. This antenna subsystem is built using dual-port, dual-band, circularly polarized antenna elements, whose design and experimental validation is carefully detailed. A low profile microstrip stacked structure has been used to obtain return loss in both bands better than 15 dB, axial ratios below 1.5 dB, and wide −3 dB beamwidths around 90° and 75° for GPS and 2.4 GHz bands, respectively, thus limiting the gain reduction of the switched-beam system in critical sensor orientations. Special attention has been paid to reduce the coupling between both ports through the optimization of the relative placement of both patches and their feeding points. The measured coupling is below −30 dB.

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“…Microstrip antennas serve as the preferred choice for the commercial applications due to their inherent features of reduced complexity, ease of integration, and cost effectiveness . Global navigation satellite systems (GNSSs) are now part of majority of the communication devices.…”

Section: Introductionmentioning

confidence: 99%

Design of a compact multiband circularly polarized antenna for global navigation satellite systems and 5G/B5G applications

Falade

Ur-Rehman

Yang

et al. 2020

Int J RF Microw Comput Aided Eng

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Design of a multiband circularly polarized antenna is proposed in this article. The antenna has a simple and compact form factor by employing single-feed stacked patch structure. It exhibits good performance at the global navigation satellite system (GNSS) frequency bands of L1, L2, and L5 and cellular communications frequency band of 2.3 GHz. The antenna has a 3-dB axial ratio bandwidth of 1.1%, 1.0%, 4.1%, and 1.5% at the four operating bands of L1 (1.575 GHz), L2(1.227 GHz), L5 (1.176 GHz), and 2.3 GHz. The antenna also achieves a gain of more than 2.2 dBiC and efficiency of more than 70% at the four frequencies. A detailed parametric study is carried out to investigate the importance of different structural elements on the antenna performance. Results are verified through close agreement of simulations and experimental measurements of the fabricated prototype. Good impedance matching, axial ratio bandwidth, and radiation characteristics at the four operating bands along with small profile and mechanically stable structure make this antenna a good candidate for current and future GNSS devices, mobile terminals, and small satellites for 5G/Beyond 5G (5G/B5G) applications. K E Y W O R D S5G/B5G, circular polarization, global navigation satellite systems, multiband, stacked patch, symmetric slots

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Single-Feed Dual-Band Stacked Patch Antenna for Orthogonal Circularly Polarized GPS and SDARS Applications

Cited by 21 publications

References 3 publications

Influence of the vehicle environment on the radiation characteristics of vehicle roof antennas

Influence of the vehicle environment on the radiation characteristics of vehicle roof antennas

Circularly Polarized Dual-Band LoRa/GPS Antenna for a UAV-Assisted Hazardous Gas and Aerosol Sensor

Design of a compact multiband circularly polarized antenna for global navigation satellite systems and 5G/B5G applications

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