Co-planar-waveguide fed Circularly Polarized Antenna for Wireless WLAN/LTE Applications

Arshad, Saba; Tahir, Farooq A.; Rashid, Aamir; Missen, Malik Muhammad Saad; Flint, James A.

doi:10.1080/02726343.2020.1780379

Cited by 6 publications

(8 citation statements)

References 14 publications

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“…Size (mm 3 ) −10 dB IBW 3 dB ARBW [11] 25 × 24.7 × 0.813 42.6% 42% [12] 28 × 28 × 1.4 60.1% 54.5% [13] 38.8 × 38.8 × 0.8 87.8% 96% [17] 45 × 45 × 1.575 100.5% 61.5% [18] 37.6 × 33.5 × 0.813 82% 80% [19] 60…”

Section: Experimental Verificationmentioning

confidence: 99%

“…A metal strip that is orthogonal to the microstrip feedline is protruded on the right side of the slot to generate two equal amplitude orthogonal currents [4]. Slots and radiation patches with special shapes are also utilized to obtain multiple circularly polarized modes and broaden the ARBW [7][8][9][10][11][12][13][14][15][16][17][18]. In [7], CP characteristic is achieved under the introduction of open slot, but the narrow ARBW limits its application in multi communication systems.…”

Section: Introductionmentioning

confidence: 99%

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Design and Optimization of CPW-Fed Broadband Circularly Polarized Antenna for Multiple Communication Systems

Fu¹,

Feng²,

Chen³

2021

PIER Letters

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A novel coplanar waveguide (CPW) fed wide slot antenna for broadband circular polarization (CP) operation is proposed in this letter. Utilizing an asymmetrical ground plane and an open slot, broadband axial ratio and good impedance characteristics can be obtained in the middle and low bands. The perturbation patch on the right side of the wide slot excites the upper-band CP mode. By adjusting the upper-part feedline and the wide slot structure, the axial ratio performance can be optimized to a wideband axial ratio bandwidth (ARBW). Compared with wide slot antennas of similar size, the proposed antenna has a simpler structure while achieving a wider ARBW. The proposed antenna has been fabricated and tested. The measured results show that the −10 dB impedance bandwidth (ZBW) is 2.40-7.55 GHz (103.5%); 3-dB ARBW is 2.47-6.2 GHz (86.0%); and the peak gain is about 4 dBic. Right-hand circular polarization (RHCP) radiation pattern is achieved in +z direction. The proposed antenna can be used in WLAN/WiMAX applications and various wireless communication systems which require broadband ZBW and ARBW.

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Section: Experimental Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Optimization of CPW-Fed Broadband Circularly Polarized Antenna for Multiple Communication Systems

Fu¹,

Feng²,

Chen³

2021

PIER Letters

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“…But single‐feed CP antenna has a constraint of narrow 3‐dB axial ratio BW. Various single‐fed monopole CP antennas with different configuration have been designed in the recent few years 8–14 …”

Section: Introductionmentioning

confidence: 99%

A wide circularly polarized dual‐band isosceles trapezoidal monopole antenna with modified ground plane

Bag

Biswas

Sarkar

2021

Int J Communication

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Summary In this paper, a simple wideband circularly polarized monopole antenna for different wireless and satellite communication applications is proposed. The top plate of the antenna is composed of an isosceles trapezoidal patch with an inverted L‐shaped strip connected along with this. The bottom side (ground plane) has been modified by embedding two right‐angle triangular stubs for enhancing the impedance and CP performances. The proposed antenna is designed and fabricated on commercially available FR4 substrate occupying the volume of 0.525λ₀ × 0.42λ₀ × 0.0168λ₀. The −10‐dB reflection coefficient bandwidth exhibits two wide bands of 1530 MHz (2.6 GHz to 4.13 GHz) and 2040 MHz (6.93 GHz to 8.97 GHz). The measured 3‐dB AR bandwidth is 1800 MHz (6.6 GHz to 8.4 GHz), covering International Tele‐communication Union for satellite communication bands (uplink and downlink). In addition, the proposed monopole antenna has also provided good gain ≥5dBi for both the bands.

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“…However, the OCT detection is susceptible to interference from external factors such as bandages, drugs, blood flow, etc., and its cost is relatively high because of the sensitive optical instrument. Co-planar waveguide (CPW) is a relatively new type of electromagnetic transmission line device [10][11][12]. Compared with traditional waveguides, CPW that can achieve transmitting electromagnetic waves in a plane has the characteristics of conformal and miniaturization.…”

Section: Introductionmentioning

confidence: 99%

“…Co-planar waveguide (CPW) is a relatively new type of electromagnetic transmission line device [ 10 , 11 , 12 ]. Compared with traditional waveguides, CPW that can achieve transmitting electromagnetic waves in a plane has the characteristics of conformal and miniaturization.…”

Section: Introductionmentioning

confidence: 99%

Preliminary study on the new wound monitoring technology using co-planar waveguide sensor: Modeling and simulation

Zhang

2021

THC

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BACKGROUND: Wound monitoring is very meaningful for the clinical research, diagnosis and treatment. But the existing wound monitoring technology is hard to meet the needs of modern medical care in terms of real-time, non-invasive and anti-interference. OBJECTIVE: To solve this problem, this paper proposed a new kind of monitoring technology based on the co-planar waveguide transmission line theory and assessed the application value of this method as a wound monitoring technology. METHODS: The simplified wound model included the skin, fat, muscle, tissue fluid and bandage and a new co-planar waveguide sensor were designed and established. All of the simulation was achieved in the electromagnetic special software. The data processing method was based on the transmission line theory. RESULTS: Detailed analyses of the results from the simulation were conducted. The sensor has a good monitoring effect in the low frequency band. The monitoring results could be influenced by the thickness of the bandage outside the wound. The thickness of the bandage should not be larger than 10 mm. The effective monitoring area of the sensor is 30 × 20 mm2. CONCLUSIONS: The proposed sensor based on the CPW transmission principle in this paper has good wound monitoring potential.

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Co-planar-waveguide fed Circularly Polarized Antenna for Wireless WLAN/LTE Applications

Cited by 6 publications

References 14 publications

Design and Optimization of CPW-Fed Broadband Circularly Polarized Antenna for Multiple Communication Systems

Design and Optimization of CPW-Fed Broadband Circularly Polarized Antenna for Multiple Communication Systems

A wide circularly polarized dual‐band isosceles trapezoidal monopole antenna with modified ground plane

Preliminary study on the new wound monitoring technology using co-planar waveguide sensor: Modeling and simulation

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