Printed dual‐band base station antenna for GSM/DCS/PCS/UMTS and LTE applications with dual polarization

Mohammadifar, Maryam; Mohammadi, Pejman; Zehforoosh, Yashar

doi:10.1002/cta.2800

Cited by 6 publications

(6 citation statements)

References 14 publications

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“…The measured harvested results are also predicted by the Friis equation. 23 However, harvested power can be further increased by using of gain enhancement techniques, [24][25][26] and modified design antenna can also be tested in WiFienabled free-space environment. The power harvesting performance of the proposed antenna added the applications and makes it suitable for light-emitting diodes (LEDs), sensors, and electronic watches.…”

Section: Rf Energy Harvestingmentioning

confidence: 99%

Remote‐controlled reconfigurable hexa‐band antenna for radio frequency energy harvesting systems

Siddique

Kumar

et al. 2021

Circuit Theory & Apps

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In this paper, a compact (15.5 Â 32 mm 2 ) reconfigurable microstrip antenna with hexa-band operation for radio frequency (RF) energy harvesting applications is presented. Three PIN diodes (D3, D2, and D1) for switching action and internet of things (IoT) controlled unit for controlling the resonating frequency of the proposed antenna are used. The antenna resonates at 2.1 and 3.4 GHz (010 state), 3.3 GHz (100 state), 3.2 GHz (101 state), 3 GHz (110 state), and 2.8 GHz (111 state). The proposed antenna exhibits À10 dB simulated and measured impedance bandwidth of 150, 400, 480, 570, 370, and 400 MHz and 120, 410, 400, 470, 320, 100, 101, 110, and 111, respectively. A maximum peak gain of 3.3 dBi and maximum bandwidth of 570 MHz at 3.2 GHz (101 state) is observed. The proposed antenna is further tested for harvested power, and maximum harvested voltage of 3.9 V, maximum harvested power of 3.013 mW, and 55.07% power conversion efficiency at 20-dBm power source are recorded. The simulated results have been validated with experimental results.hexa-band, power harvesting, reconfigurable antenna, rectenna, remote-controlled switch | INTRODUCTIONAdvancement in portable smart electronic devices operating at multiple frequencies has led to expeditious enhancement in performance of the microstrip patch antenna for wireless communications. Antenna with multiple resonance and adjustable resonance with reconfigurable antenna are the need for modern communication devices. 1 Antennas with fixed frequency band and radiation pattern can be used for single service. The applications seeking multiple frequency bands need multiple antennas or multiband antenna. More number of antennas results in large space consumption, interference between adjacent antenna elements, complex hardware platform, and huge installation cost. Antennas with compact size, less interference, efficient in transmission, low cost, and least complexity are required in advanced communication electronic equipment. The reconfigurable antennas can be used to overcome the limitations aforesaid 2 efficiently.A reconfigurable antenna provides an alternate method to enhance the antenna bandwidth without change in physical dimension. The reconfigurable antennas have been replaced over conventional multiband and multiple-input

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Section: Rf Energy Harvestingmentioning

confidence: 99%

Remote‐controlled reconfigurable hexa‐band antenna for radio frequency energy harvesting systems

Siddique

Kumar

et al. 2021

Circuit Theory & Apps

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“…The PFMEA is a reliability analysis method usually adopted by "engineers/teams responsible for manufacturing" to fully consider and specify the potential failure modes and associated causes/mechanisms for the possible scenarios. Different outcomes of the PFMEA are described as follows 8 :…”

Section: Process Failure Mode and Effects Analysismentioning

confidence: 99%

Process: Failure mode and effect analysis of power module on network base station

Shuai

2020

Circuit Theory & Apps

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The power module of failure modes and effects were analyzed from process, combined with the condition of field station power available, maintenance, and repair on TMB power and personal handy-phone system, in the context of network base station power module parts machining requirements. The key factors affecting the quality of power were identified. And the improvement measures and principles to improve the power of the batch quality and reduce the damage rate were proposed. Finally, the ability of the reliability of power was improved. K E Y W O R D Sfailure modes and effects analysis, network, power module, power quality | INTRODUCTIONElectricity serves as the energy source for normal operation of base station equipment, and the power module forms the core of the power system. In a base station, the main function of the power module 1-5 is to provide stable AC and DC power 6,7 outputs for different types of equipment. 8 Currently, significant seasonal damage suffered by communication base station equipment, especially power supply equipment, is a major problem faced by the communication industry. Over the last several years, major Chinese telecommunications operators such as China Mobile, China Unicom, and China Telecom have spent a large amount of money for the daily maintenance of power supply equipment. However, as the operators were not aware of the main cause of the problem, the measures taken by them were not adequate, and no effective precautions have been found so far except for the passive after-the-fact maintenance. China Mobile, China Unicom, and China Telecom have tens of thousands of base stations in each province, and this number has seen a significant increase due to rapid development of businesses. The annual maintenance costs of repairing the seasonal damages to communication base station equipment increase every year due to the large number of base stations. Therefore, high requirements are imposed on the quality of base station power module.In this paper, first, the technical processing requirements of the outsourced parts of the network base station power module are presented. Next, these requirements are combined with the on-site usage, maintenance, and repair of TMB power supply and the base station power supply of personal handhold telephone system, followed by an analysis of the potential failure of the product. [9][10][11] Based on this analysis, key factors impacting the power supply quality are determined. Furthermore, measures and principles are proposed to improve the batch quality and reduce damage to the power supply and improve the reliability of the whole machine. By analyzing the failure mode and effects, important factors causing power supply damage are found. Moreover, improvement measures are proposed that can be taken in advance to control the power supply damage rate or lower the maintenance rate, thereby improving the overall machine quality.

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“…Several interesting low-profile designs have been reported in recent times [20][21][22] with an objective to demonstrate dual-band dual-polarization. However, these do not include the tracking feature.…”

Section: Introductionmentioning

confidence: 99%

Lower profile high‐power dual‐polarized wide‐beam tracking antenna at S‐band

Chakrabarti

Sadhukhan

Chakraborty

et al. 2022

Micro & Optical Tech Letters

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An S‐band dual linearly polarized monopulse tracking antenna has been developed with a cavity‐backed cross‐dipole antenna as the element. Wide‐beam and wideband tracking have been successfully demonstrated. Systematic design approaches have been presented. The cavity arrangement enhances the beamwidth of a horizontal dipole significantly retaining its wideband characteristics. The element exhibits a 3 dB beamwidth ≥145°. Such a wide beamwidth made the cavity‐backed cross dipole an attractive choice as the element for the tracking antenna. The monopulse antenna demonstrates an impedance bandwidth ≥20.7% with isolation superior to 24 dB. Dual polarized tracking has been effectively verified over ≥15% bandwidth with a broad‐side gain of 11.2 dBi. The angular field‐of‐view (FOV) for the tracking is ≥60°. Higher tracking bandwidth and wider FOV of the array, lower profile, and high‐power handling capability are the superiority of the developed antenna.

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Printed dual‐band base station antenna for GSM/DCS/PCS/UMTS and LTE applications with dual polarization

Cited by 6 publications

References 14 publications

Remote‐controlled reconfigurable hexa‐band antenna for radio frequency energy harvesting systems

Remote‐controlled reconfigurable hexa‐band antenna for radio frequency energy harvesting systems

Process: Failure mode and effect analysis of power module on network base station

Lower profile high‐power dual‐polarized wide‐beam tracking antenna at S‐band

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