New Pattern Reconfigurable Circular Disk Antenna Using Two PIN Diodes for WiMax/WiFi (IEEE 802.11a) Applications

AI-Yasir, Yasir I.A.; OJaroudiParchin, Naser; Alabdullah, Ali A. S.; Mshwat, Widad; Ullah, Atta; Abd‐Alhameed, Raed A.

doi:10.1109/smacd.2019.8795287

Cited by 54 publications

(17 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides this, the smartphone PCB is in a rectangular shape (with a size of 150 × 75 mm 2 ) which could cause some discrepancies on the frequency responses and couplings, mainly between even and odd port numbers (antennas 1 and 2, for example). However, due to the flexible frequency behavior of the antenna elements (explained in Figure 4), by modifying the design parameters of the antenna element, the frequency response can be easily adjusted to the desired frequency bands [61]. The side view of the design radiation patterns for a single-element radiator at different operation frequencies is illustrated in Figure 7.…”

Section: Characteristics Of the Handset Antenna Arraymentioning

confidence: 99%

Design of Multi-Mode Antenna Array for Use in Next-Generation Mobile Handsets

Parchin

Basherlou

Abd‐Alhameed

2020

Sensors

Self Cite

View full text Add to dashboard Cite

In this study, a new design of a tri-band multiple-input–multiple-output (MIMO) antenna array is proposed for fifth-generation (5G) cellular systems. Its structure is composed of eight identical planar-inverted F antenna (PIFA) elements placed at different edge corners of the handset mainboard with overall dimensions of 150 × 75 mm2. The PIFA elements and ground plane of the MIMO antenna system are arranged on the back layer of the platform, which makes the design easy to integrate with the handset circuit. For S11 ≤ −10 dB, the radiation elements of the MIMO design operate at the frequency ranges of 2.5–2.7 GHz, 3.4–3.75 GHz, and 5.6–6 GHz covering the long-term evolution (LTE) 41, 42/43, and 47 operation bands, respectively. The array achieves better than 15 dB return loss results across the three operating bands. The presented antenna array not only exhibits multi-band operation but also generates the polarization diversity characteristic, which makes it suitable for multi-mode operation. The proposed antenna array was simulated and experimentally tested. Fundamental characteristics of the proposed design are investigated. It offers three band S-parameters with acceptable isolation and dual-polarized radiation with quite good efficiency and gain results. Besides this, the total active reflection coefficient (TARC) and envelope correlation coefficient (ECC) results of the PIFAs are very low over the bands. In addition, the radiation characteristics of the MIMO antenna in the presence of the user and handset components are studied. Moreover, a new and compact phased array millimeter-wave (MM-Wave) antenna with broad bandwidth and end-fire radiation is introduced which can be easily integrated into the smartphone antenna system. Due to its good performance and simple structures, the proposed smartphone antenna array design is a good candidate for future multi-mode 5G cellular applications.

show abstract

Section: Characteristics Of the Handset Antenna Arraymentioning

confidence: 99%

Design of Multi-Mode Antenna Array for Use in Next-Generation Mobile Handsets

Parchin

Basherlou

Abd‐Alhameed

2020

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…Every element of the antenna are located sideways the two wide sides of a 130×75 mm 2 ground plane, which is almost the identical measurement of today's smart mobile phones. Eight antenna components are designed on two minor substrates which are placed perpendicular on the central system substrate [25][26][27][28].…”

Section: Design and Configurationmentioning

confidence: 99%

Dual-Band MIMO Antenna System for Next Generation Smartphone Applications

Ullah¹,

Parchin²,

Abd‐Alhameed³

2020

Proceedings of the Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart

Self Cite

View full text Add to dashboard Cite

In this new article, a different model of dual-band MIMO compact antenna array is proposed for the upcoming fifth generation smartphone mobile terminal. The antenna conatins eight antenna elements covering dual frequency rang including 3.18-3.96 GHz and 4.95-5.52 GHz of sub 6 GHz 5G spectrums. The elements are fed by modified Fshaped microstrip feeding lines. Essential characteristics of the suggested model are examined. It proposes adequate S-parameters, suitable isolation, sufficient radiation analysis, and efficiency. At 3.6 GHz the Ant 5 has maximum return loss of-25dB while Ant 7 has maximum return loss of-26dB at 5.2 GHz of the proposed dual band frequency of 5G smartphones.

show abstract

“…Recently, the low bandwidth at 700 MHz, the mid bandwidth (3.4–3.8 GHz), and the upper bandwidth (24.25–27.5 GHz) for millimeter-wave are being identified for fifth-generation (5G) spectrum by the office of communications (Ofcom) [ 25 ]. Microstrip BPFs are applied to reduce the interference signals in many 4G and 5G applications [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. For microstrip BPFs, the number of poles and zeros, input and output external quality factors, coupling coefficients and the configuration of the resonators are vital features to define the filter performance [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

A Varactor-Based Very Compact Tunable Filter with Wide Tuning Range for 4G and Sub-6 GHz 5G Communications

Al‐Yasir

Parchin

et al. 2020

Sensors

Self Cite

View full text Add to dashboard Cite

A very compact microstrip reconfigurable filter for fourth-generation (4G) and sub-6 GHz fifth-generation (5G) systems using a new hybrid co-simulation method is presented in this manuscript. The basic microstrip design uses three coupled line resonators with λ/4 open-circuited stubs. The coupling coefficients between the adjacent and non-adjacent resonators are used to tune the filter at the required center frequency to cover the frequency range from 2.5 to 3.8 GHz. The coupling coefficient factors between the adjacent resonators are adjusted to control and achieve the required bandwidth, while the input and output external quality factors are adjusted to ensure maximum power transfer between the input and output ports. Two varactor diodes and biasing circuit components are selected and designed to meet the targeted performance for the tunable filter. The impedance bandwidth is maintained between 95 and 115 MHz with measured return losses of more than 17 dB and measured insertion loss of less than 1 dB. Computer simulation technology (CST) is utilized to design and optimize the presented reconfigurable filter, with hybrid co-simulation technique, using both CST microwave studio (MWS) and CST design studio (DS), is applied to build the model by considering the SPICE representation for the varactor switches and all electronic elements of the biasing circuit. The introduced reconfigurable microstrip filter is also fabricated using a Rogers RO3010 material with a relative dielectric constant of 10.1 and it is printed on a very compact size of 13 × 8 × 0.81 mm3. An excellent agreement is obtained between the simulation and measurement performance.

show abstract

New Pattern Reconfigurable Circular Disk Antenna Using Two PIN Diodes for WiMax/WiFi (IEEE 802.11a) Applications

Cited by 54 publications

References 13 publications

Design of Multi-Mode Antenna Array for Use in Next-Generation Mobile Handsets

Design of Multi-Mode Antenna Array for Use in Next-Generation Mobile Handsets

Dual-Band MIMO Antenna System for Next Generation Smartphone Applications

A Varactor-Based Very Compact Tunable Filter with Wide Tuning Range for 4G and Sub-6 GHz 5G Communications

Contact Info

Product

Resources

About