A Novel Colocated Cross-Polarized Two-Loop PCB Antenna in the ISM 2.4-GHz Band

Elnour, B.; Erricolo, Danilo

doi:10.1109/lawp.2010.2104131

Cited by 18 publications

(22 citation statements)

References 11 publications

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“…We find that the maximum capacity could be obtained if the field components corresponding to the polarizations of the transmit antennas are employed. In particular, for the channel matrix H = h 11 h 12 h 21 h 22 , h 11 and h 21 are the y and z magnetic field components produced by Tx 1 correspondingly and h 12 and h 22 are the y and z magnetic field components produced by Tx 2 correspondingly.…”

Section: Resultsmentioning

confidence: 99%

“…After the optimization, the following parameters of this antenna are determined: radius of loop = 28.5 mm, 2-mm-wide traces; bottom ground arms = 17 cm × 17 cm and top ground patch = 4 cm × 4 cm. The ULL is based on the Kandoian loop [12]. Fig.…”

Section: Antenna Structurementioning

confidence: 99%

“…Therefore, to further understand the relationship between these factors and the MIMO capacity, three types of the DPL antennas are selected with different current distributions and port isolations. The first type of DPL antenna is based on an ordinary loop, which has a nonuniform current distribution and a high isolation (NHL); the second type one has a uniform current distribution and a high isolation (UHL), which is based on a wideband horizontally polarized printed loop antenna [11], the third type (ULL) one has also a uniform current distribution but a low isolation, which is based on the Kandoian loop [12].…”

Section: Introductionmentioning

confidence: 99%

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Mimo Capacity Comparisons of Three Types of Colocated Dual-Polarized Loop Antennas

Piao¹,

Yang²

2014

PIER C

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Abstract-The 2 × 2 multiple-input-multiple-output (MIMO) capacities of three types of colocated dual-polarized loop (DPL) antennas with different current distributions and isolations are investigated in the free space (FS) channel, the corridor with perfect electric conductor walls (PEC corridor) and the corridor with concrete walls (CON corridor), separately. Capacity results show strong dependences on both the structure and the position of the DPL antenna, in addition to the propagation conditions. For all the three propagation scenarios, the largest capacity can be reached is in the PEC corridor, employing the DPL antenna with a uniform current distribution and a high isolation. Specifically, for a 20 dB signal-to-noise ratio (SNR), the maximum dual-polarized MIMO capacity is 13.1 bps/Hz, which is 1.97 time of that obtained by the one-polarized loop. It is also noted that, the rich-multipath environment can increase the robustness of the DPL MIMO system and the difference of the MIMO capacity obtained by different antenna structures will get smaller with respect to that in the FS channel.

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Section: Resultsmentioning

confidence: 99%

Section: Antenna Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mimo Capacity Comparisons of Three Types of Colocated Dual-Polarized Loop Antennas

Piao¹,

Yang²

2014

PIER C

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“…Elnour et el. [15] present A novel co-located crosspolarized two-loop PCB antenna in the ISM 2.4 GHz band, for solving the problem of direction finding in radar. This antenna acts as an electromagnetic vector sensor (EMVS).…”

Section: Theoretical Backgroundmentioning

confidence: 99%

A Prototype Model Design of Wide Band Standard Reference Rod-Dipole antenna for 3-Axis EMC Measurement with hybrid Balun for 0.9 to 3.2GHz

Patil¹,

Petkov

Bonev

2018

AEM

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Every electronics equipment must deal with EMC test. The testing laboratory of electronics equipment for radiation emission must have accurately calibrated antennas. The field strength of total radiated radio frequency is average of all incident signals at given point; this incident signal originates from various directions. To measure three components of all-electric field vectors, a tri-pole antenna is most beneficial over conventional antenna because of it responds to signal coming from multi-directions. This paper presents novel three axis wideband calculable rod-dipole antenna with the hybrid balun for the range of 900MHz to 3.2GHz frequencies, the proposed antenna is small in size and functional electrical characteristics. In this paper, antenna key parameters are measured and verified with designed values. In simulation results has observed the return loss (S11) less than -10dB within the frequency range 900MHz to 3.2GHz. The result of these articles is evident of efficient construction of antenna with low cost, lightweight. This module applicable for EMC precompliance test at the open field site.

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“…Using the multi-polarized electric dipoles, the E x , E y and E z components can be utilized, but in order to make use of the H x , H y and H z components, the multi-polarized electric loops should be fabricated. However, the design of the co-located dual-polarized loop (DPL) is few [11], [12], and the tri-polarized loop (TPL) antenna are seldom seen. In fact, the design of co-located electric loops is generally more challenging than the design of the co-located electric dipoles.…”

Section: Introductionmentioning

confidence: 99%

Measurement-Based Performance Comparison of Colocated Tripolarized Loop and Dipole Antennas

Piao

Yang

Guo

et al. 2015

IEEE Trans. Antennas Propagat.

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In this paper, a co-located tri-polarized loop (TPL) antenna is proposed and a co-located tri-polarized dipole (TPD) antenna is also designed for multiple-input multiple-output (MIMO) performance comparison. Both antennas have satisfactory performances of impedance bandwidth and isolation. The channel measurements are conducted in a non-lossy reverberation chamber (RC), a lossy RC, a corridor and an office room. For both antennas, the measured average correlation coefficients (CCs) in the non-lossy RC are the smallest, close to 0.1, in the lossy RC are the largest, 0.3-0.5, and in the two indoor scenarios are slightly larger than that in the non-lossy RC. Except for the signal correlation, the relative path loss (RPL) should also be included to fairly compare the channel capacities. If the RPL is considered, a strong dependence of the channel capacity on the propagation properties can be seen. For both antennas, the channel capacities in the two indoor scenarios are 20%-30% smaller than that in the non-lossy RC. Interestingly, both antennas have similar condition numbers (CNs) in all the four scenarios, whose PDFs are close to that of the independent identically distributed (i.i.d) complex Gaussian channel, which reveals that both antennas can obtain nearly three independent parallel subchannels and good multiplexing performance.Index Terms-Tri-polarized loop (TPL), tri-polarized dipole (TPD), multiple-input multiple-output (MIMO), measurement. 0018-926X (c)

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A Novel Colocated Cross-Polarized Two-Loop PCB Antenna in the ISM 2.4-GHz Band

Cited by 18 publications

References 11 publications

Mimo Capacity Comparisons of Three Types of Colocated Dual-Polarized Loop Antennas

Mimo Capacity Comparisons of Three Types of Colocated Dual-Polarized Loop Antennas

A Prototype Model Design of Wide Band Standard Reference Rod-Dipole antenna for 3-Axis EMC Measurement with hybrid Balun for 0.9 to 3.2GHz

Measurement-Based Performance Comparison of Colocated Tripolarized Loop and Dipole Antennas

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