Indoor radio link characterization studies for millimeter wave wireless communications utilizing dielectric-loaded exponentially tapered slot antenna

Ramesh, S.; Rao, T. Rama

doi:10.1080/09205071.2015.1011349

Cited by 9 publications

(6 citation statements)

References 23 publications

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“…where XPD denotes the cross-polarization discrimination factor, a and g have the same meanings as in (27). Note that the CIFX model (39) uses the same a and g as substituted in the CIF model (26), thus the a and g in ( 39) are also given by ( 35) and (36), respectively. The XPD is solved via the MMSE method that fits the measured cross-polarized path loss data with the smallest error (i.e., SF standard deviation).…”

Section: Cifx Path Loss Modelmentioning

confidence: 99%

“…In a recent indoor experiment down a narrow hallway, researchers were able to transmit 7.5 Gbps at a distance of 15 m using a high gain Antipodal Linear Tapered Slot Antenna (ALTSA) at 60 GHz [37], with additional studies resulting in a path loss exponent (PLE) of 2.12 relative to a 1 meter (m) free space reference distance in line-of-sight (LOS), slightly above theoretical free space path loss (PLE = 2) [38]. Researchers in India also focused on mmWave antenna design at 60 GHz with relatively high gains and small form factors for gigabit wireless communications and applications [39].…”

Section: Introductionmentioning

confidence: 99%

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Indoor Office Wideband Millimeter-Wave Propagation Measurements and Channel Models at 28 and 73 GHz for Ultra-Dense 5G Wireless Networks

MacCartney¹,

Rappaport²,

Sun³

et al. 2015

IEEE Access

543

550

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Ultra-wideband millimeter-wave (mmWave) propagation measurements were conducted in the 28-and 73-GHz frequency bands in a typical indoor office environment in downtown Brooklyn, New York, on the campus of New York University. The measurements provide large-scale path loss and temporal statistics that will be useful for ultra-dense indoor wireless networks for future mmWave bands. This paper presents the details of measurements that employed a 400 Megachips-per-second broadband sliding correlator channel sounder, using rotatable highly directional horn antennas for both co-polarized and crosspolarized antenna configurations. The measurement environment was a closed-plan in-building scenario that included a line-of-sight and non-line-of-sight corridor, a hallway, a cubicle farm, and adjacent-room communication links. Well-known and new single-frequency and multi-frequency directional and omnidirectional large-scale path loss models are presented and evaluated based on more than 14 000 directional power delay profiles acquired from unique transmitter and receiver antenna pointing angle combinations. Omnidirectional path loss models, synthesized from the directional measurements, are provided for the case of arbitrary polarization coupling, as well as for the specific cases of co-polarized and cross-polarized antenna orientations. The results show that novel large-scale path loss models provided here are simpler and more physically based compared to previous 3GPP and ITU indoor propagation models that require more model parameters and offer very little additional accuracy and lack a physical basis. Multipath time dispersion statistics for mmWave systems using directional antennas are presented for co-polarization, crosspolarization, and combined-polarization scenarios, and show that the multipath root mean square delay spread can be reduced when using transmitter and receiver antenna pointing angles that result in the strongest received power. Raw omnidirectional path loss data and closed-form optimization formulas for all path loss models are given in the Appendices.

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Section: Cifx Path Loss Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Indoor Office Wideband Millimeter-Wave Propagation Measurements and Channel Models at 28 and 73 GHz for Ultra-Dense 5G Wireless Networks

MacCartney¹,

Rappaport²,

Sun³

et al. 2015

IEEE Access

543

550

View full text Add to dashboard Cite

show abstract

“…PL models are needed to estimate the signal to noise power (SNR) and interference levels as a function of separation distance between two devices. The ratio of SNR can be obtained using the received power R P given in Equation (6) [29][30][31], where 10 log(kT syst ) is the thermal noise for a system temperature of 17 • C, NF RX the noise figure of the receiver in dB, and W the bandwidth of the signal in hertz.…”

Section: Performance Analysismentioning

confidence: 99%

“…The channel capacity (C) defines the maximum achievable throughput in the specified channel condition. Capacity is set by the bandwidth and SNR and can be given as Equation (7) [28][29][30][31].…”

Section: Performance Analysismentioning

confidence: 99%

Performance Investigations With Antipodal Linear Tapered Slot Antenna on 60 GHZ Radio Link in a Narrow Hallway Environment

Rao¹

2015

PIER C

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The performance of wireless communication systems is predominantly dependent on propagation environment and respective radiating antennas. Due to the shorter wavelength at Millimeter Wave (MmW) frequencies, the propagation loss through surroundings in indoor environments is typically very high. To improve the channel capacity and to reduce inter-user interference, a high gain directional antenna is desired at MmW frequencies. Traditional antennas used in MmW devices are not suitable for low-cost commercial devices due to their heavy, bulky and expensive configurations. This paper focuses on design and development of a very compact (44.61 mm × 9.93 mm × 0.381 mm) high gain Antipodal Linear Tapered Slot Antenna (ALTSA) utilizing Substrate Integrated Waveguide (SIW) technology at 60 GHz. Received signal strength (RSS), path loss (PL) and capacity are studied for MmW based wireless applications utilizing electromagnetic (EM) computations and Radio Frequency (RF) experiments in narrow hallway environment.

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“…In 2015, S. Ramesh and his team conducted pivotal research in indoor radio link characterization for millimeter-wave wireless communications, utilizing dielectric-loaded index-tapered slot antennas [ 20 ]. This design achieved a 3.33 GHz bandwidth, 6.45 dBi gain, and a maximum reflection coefficient of 21.31 dB.…”

Section: Introductionmentioning

confidence: 99%

A 60 GHz Slotted Array Horn Antenna for Radar Sensing Applications in Future Global Industrial Scenarios

Ma,

Li,

Chen

et al. 2024

Micromachines

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This paper presents the design of a 60 GHz millimeter-wave (MMW) slot array horn antenna based on the substrate-integrated waveguide (SIW) structure. The novelty of this device resides in the achievement of a broad impedance bandwidth and high gain performance by meticulously engineering the radiation band structure and slot array. The antenna demonstrates an impressive impedance bandwidth of 14.96 GHz (24.93%), accompanied by a remarkable maximum reflection coefficient of −39.47 dB. Furthermore, the antenna boasts a gain of 10.01 dBi, showcasing its outstanding performance as a high-frequency antenna with a wide bandwidth and high gain. To validate its capabilities, we fabricated and experimentally characterized a prototype of the antenna using a probe test structure. The measurement results closely align with the simulation results, affirming the suitability of the designed antenna for radar sensing applications in future global industrial scenarios.

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Indoor radio link characterization studies for millimeter wave wireless communications utilizing dielectric-loaded exponentially tapered slot antenna

Cited by 9 publications

References 23 publications

Indoor Office Wideband Millimeter-Wave Propagation Measurements and Channel Models at 28 and 73 GHz for Ultra-Dense 5G Wireless Networks

Indoor Office Wideband Millimeter-Wave Propagation Measurements and Channel Models at 28 and 73 GHz for Ultra-Dense 5G Wireless Networks

Performance Investigations With Antipodal Linear Tapered Slot Antenna on 60 GHZ Radio Link in a Narrow Hallway Environment

A 60 GHz Slotted Array Horn Antenna for Radar Sensing Applications in Future Global Industrial Scenarios

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