Planar beam‐switching dipole antenna

Jin, Guangyong; Li, Miaolan; Wang, Wei; Li, Long; Liao, Shaowei

doi:10.1049/iet-map.2018.5897

Cited by 4 publications

(5 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They were able to create a dipole antenna capable of switching planar beams [24]. Their dipole was relatively small in size with folded slots and two parasitic elements with two positive intrinsic negative diodes.…”

Section: Dipole Antennasmentioning

confidence: 99%

Effect of Dielectric Substrate on Dipole Antenna Directivity

Africa¹

2019

IJETER

View full text Add to dashboard Cite

This paper aimed to determine how the directivity was affected by the dielectric substrate in the dipole antenna. The researchers had to choose different substrates and specific property of antennas in order to produce this study. Given all these substrates, the study focused on which of these would produce the best results that would be beneficial to antennas of a certain function. For this case, it is the directivity of the antenna that is being researched on. Through the use of the Matrix Laboratory (MATLAB) software, the researchers were able to conduct a comparative study on these different substrates to obtain their directivities. After the researchers conducted the simulation, the dielectric substrate, Fused Quartz was found to have the least value in directivity while Air had the highest directivity. Additionally, the researchers were able to deduce that the lower the constant of the material, the higher the directivity of the material. This showed that the relationship between the two variables was inversely proportional.

show abstract

Section: Dipole Antennasmentioning

confidence: 99%

Effect of Dielectric Substrate on Dipole Antenna Directivity

Africa¹

2019

IJETER

View full text Add to dashboard Cite

show abstract

“…The novelty of this work is to establish a synthesis of the RFID tag antenna with RF PIN diode to achieve switching operation within the UHF band so that the tag can be used in different countries according to the RFID communication frequency assigned in the respective countries thereby facilitating inter-country transportation of vehicles. There are numerous works on switching performances of an antenna using RF diodes [21,22]. Entire investigations of the above-mentioned designs are limited to 50 Ω port antennae that cannot be implemented in RFID tags since they use chips as feeding ports which have complex impedance.…”

Section: Introductionmentioning

confidence: 99%

Frequency Switchable Global RFID Tag Antennae with Metal Compatibility for Worldwide Vehicle Transportation

Mazumder

Ghosh

Bhattacharya

et al. 2023

Sensors

View full text Add to dashboard Cite

This paper presents an effective way to design an RFID tag antenna to operate at three different frequencies by incorporating a switching technique. PIN diode has been used to switch the RF frequency because of its good efficiency and simplicity. The conventional dipole-based RFID tag has been improvised with added co-planar ground and PIN diode. The layout of the antenna is designed with a size of 0.083 λ0 × 0.094 λ0 at UHF (80–960) MHz, where λ0 is the free-space wavelength corresponding to the mid-point of the targeted UHF range. The RFID microchip is connected to the modified ground and dipole structures. Bending and meandering techniques on the dipole length help to match the complex chip impedance with the dipole impedance. Additionally, it scales down the total structure of the antenna. Two PIN diodes are placed along the dipole length at appropriate distances with proper biasing. The ON-OFF switching states of the PIN diodes enable the RFID tag antenna to switch over the frequency ranges (840–845) MHz (India), 902–928 MHz (North America), and 950–955 MHz (Japan).

show abstract

“…In this way, by activating a different part of the antenna, a corresponding pattern is enabled, resulting in pattern-reconfigurable properties. This is properly explained in [4], where the omnidirectional pattern contains two identical patterns, while in [5], the same principle is studied but with four brackets for the antenna and four patterns as well. Another important characteristic of reconfigurable antennas is the possibility to operate on different frequencies.…”

Section: Introductionmentioning

confidence: 99%

A Reconfigurable Polarization—Frequency Supershape Patch Antenna with Enhanced Bandwidth

et al. 2020

View full text Add to dashboard Cite

In this article a reconfigurable antenna for WLAN/WiMAX applications is presented. A super-shape radiator of an ellipsis shape is used to achieve wider intrinsic bandwidth compared to the classical rectangular patch antenna, while the dimensions remain comparable. The proposed antenna is fed at two points exciting both horizontal and vertical polarization but in different operating frequencies. To achieve wider bandwidth, as a whole but also for each polarization, the symmetrical feeding points for each excitation are also employed with a proper feeding network. PIN diodes are also used in the feeding network to provide the option of narrower bandwidth. The antenna substrate is Rogers RO4003C with dielectric constant εr = 3.55 and dissipation losses tanδ = 0.0027 with height h = 1.524 mm. The antenna operates in the range of 2.3 GHz to 2.55 GHz but, using the proposed procedure, it can be designed for different frequency ranges.

show abstract

Planar beam‐switching dipole antenna

Cited by 4 publications

References 21 publications

Effect of Dielectric Substrate on Dipole Antenna Directivity

Effect of Dielectric Substrate on Dipole Antenna Directivity

Frequency Switchable Global RFID Tag Antennae with Metal Compatibility for Worldwide Vehicle Transportation

A Reconfigurable Polarization—Frequency Supershape Patch Antenna with Enhanced Bandwidth

Contact Info

Product

Resources

About