Antennas for Global Navigation Satellite Systems

Chen, Xiaodong; Parini, C.G.; Collins, Brian; Yao, Yuan; Ur-Rehman, Masood

doi:10.1002/9781119969518

Cited by 45 publications

(30 citation statements)

References 24 publications

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“…The skin-equivalent phantom of the torso has been taken out of a high resolution whole-body model and thus, employs a realistic body shape. The overall dimensions of the phantom are 288×100×40 mm 3 used [27]. It resulted in a maximum resolution of 2 mm near the boundaries of the computational domain.…”

Section: A Numerical Modelling Of the Skin Phantommentioning

confidence: 99%

A Low Profile Antenna for Millimeter-Wave Body-Centric Applications

Ur-Rehman

Malik

Yang

et al. 2017

IEEE Trans. Antennas Propagat.

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Abstract-Millimetre-Wave frequencies are a front runner contender for the next generation body-centric wireless communications. In this paper, design of a very low profile antenna is presented for body-centric applications operating in the millimetre-wave frequency band centred at 60 GHz. The antenna has an overall size of 14×10.5×1.15 mm 3 and is printed on a flexible printed circuit board. The performance of the antenna is evaluated in off-body, on-body and body-to-body communication scenarios using a realistic numerical phantom and verified through measurements. The antenna has a bandwidth of 9.8 GHz and offers a gain of 10.6 dBi in off-body (free space) configuration while 12.1 dBi in on-body configuration. It also acheives an efficiency of 74% in off-body and 63% in on-body scenario. The small and flexible structure of the antenna along with excellent impedance matching, broad bandwidth, high gain and good efficiency makes it a suitable candidate to attain simultaneous data transmission/reception at millimetre-wave frequencies for the 5G body-centric applications.

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Section: A Numerical Modelling Of the Skin Phantommentioning

confidence: 99%

A Low Profile Antenna for Millimeter-Wave Body-Centric Applications

Ur-Rehman

Malik

Yang

et al. 2017

IEEE Trans. Antennas Propagat.

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“…The major advantages of CP antennas are its capability to transmit and receive signals with no restricted orientation [1] and its ability of weather penetration with rejection of multipath signals and thus enhancing the polarisation efficiency of the receiving antenna [2]. CP antennas can be realised using either single or dual-feed structures.…”

Section: Introductionmentioning

confidence: 99%

A Wideband Circularly Polarised Cross-Slot Antenna with an L-Shaped Feed-Line

Aly

Wang

2017

Loughborough Antennas &Amp; Propagation Conference (LAPC 2017)

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This paper presents a new wideband and circularly polarised (CP) slot antenna realised by using an L-shaped feed underneath the cross-slot antenna, and tapered to the conventional microstrip feed-line. The proposed antenna is fabricated with an area of 75 × 80 mm 2 . The simulated results showed that the antenna had an impedance matching bandwidth of 34% from 1.3 to 1.83 GHz, and an axial ratio (AR) bandwidth of 20% from 1.36 to 1.66 GHz. A maximum gain value of 3.4 -3.8 dBi has been achieved within the operating band. The proposed antenna is of a simple and single-substrate structure, suitable for the Global Navigation Satellite Systems (GNSS) application. The impedance bandwidth and radiation patterns have been confirmed by measurement.

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“…That is the reason why some commercial receivers use linearly polarized (LP) antennas to receive circularly polarized signals. LP antennas are smaller in size than the corresponding circularly polarized (CP) antenna [1], and 3-dB polarization mismatch loss is a trade-off for the reduction in antenna size. The problem is exacerbated when the antennas are supposed to radiate in two or more bands.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Circularly Polarized Stacked Patch Antenna on Reactive Impedance Surface for Dual-Band ISM and WiMAX Applications

Agarwal

Dutta

2015

International Journal of Antennas and Propagation

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This paper proposes a compact microstrip patch antenna for operating in 2.4 GHz ISM and 3.5 GHz WiMAX bands with circularly polarized (CP) radiation. The CP radiation in dual-bands is a result of two multilayered truncated corner stacked square patches, while the reactive impedance surface (RIS) is used for antenna size miniaturization for the lower operating frequency band. Since the overall lateral antenna dimensions are controlled by the lower frequency band (higher wavelength), reducing the electrical size of the antenna for lower band results in overall smaller antenna dimensions. The measured 3-dB axial ratio bandwidths of the inhouse fabricated antenna prototype are 6.1% (2.40-2.55 GHz) for the lower band and 5.7% (3.40-3.60 GHz) for the upper band, while the 10-dB 11 bandwidths for the two bands are 8.1% (2.39-2.59 GHz) and 6.9% (3.38-3.62 GHz), respectively. The maximum gain at boresight for the lower band is 2.93 dBic at 2.5 GHz, while the gain for the upper band is 6.26 dBic at 3.52 GHz. The overall volume of the proposed antenna is 0.292 o × 0.292 o × 0.044 o , where o is the corresponding free-space wavelength at 2.5 GHz.

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Antennas for Global Navigation Satellite Systems

Cited by 45 publications

References 24 publications

A Low Profile Antenna for Millimeter-Wave Body-Centric Applications

A Low Profile Antenna for Millimeter-Wave Body-Centric Applications

A Wideband Circularly Polarised Cross-Slot Antenna with an L-Shaped Feed-Line

Miniaturized Circularly Polarized Stacked Patch Antenna on Reactive Impedance Surface for Dual-Band ISM and WiMAX Applications

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