Ultra-wideband MIMO antenna with reconfigurable band notch characteristics and improved isolation

Nej, Sanjukta; Ghosh, Arunabha; Kumar, Jitender; Das, Santanu

doi:10.1016/j.aeue.2023.154849

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…Finally, comparing this proposal to other works already published, the following results are presented: From Gurjar and colleagues [14][15][16][17][18] and this work, the number of elements is: 2, 2, 2, 4, 4, and 4, respectively; the size of each array is: 720, 1800, 2916, ~12,100, 1024, and 7200 mm 2 each layer. The frequency band is in GHz: 3-12.6; 3.5, 4.5, and 7.5; 2.83-13.23; 1.37-16; 3.2-5.2, and 5-20 GHz.…”

Section:  mentioning

confidence: 66%

Four‐port MIMO Vivaldi antenna for access points

Lilian,

José,

Hildeberto

et al. 2024

Micro & Optical Tech Letters

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In this article, a 4‐port multiple input, multiple output (MIMO) antenna array is presented, based on a Vivaldi design for nonplanar applications like access points above 6 GHz. The antenna is configured with four Vivaldi antennas arranged orthogonally, one to each other, to increase the electromagnetic isolation among elements. The Vivaldi element is fed with a microstrip with an integrated balun in only one arm, and each arm is set in an antipodal position to the other, giving an easy‐to‐design and build prototype, with no complicated feeding techniques. Each antenna plane has dimensions of 90 × 40 mm2. The array presents a bandwidth from 5.3 GHz to beyond 20 GHz, with electromagnetic isolation above 20 dB, an envelope correlation coefficient below 0.001 for the entire bandwidth, giving a diversity gain around 20 dB, and a total active reflection coefficient below −10 dB from 7 to 20 dB, fulfilling the metrics for MIMO applications.

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Section:  mentioning

confidence: 66%

Four‐port MIMO Vivaldi antenna for access points

Lilian,

José,

Hildeberto

et al. 2024

Micro & Optical Tech Letters

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“…6,7 A crucial aspect of MIMO is the capability to switch between different antennas, which is vital for managing the connection between the transmitter, receiver, and antennas. [8][9][10] The application of MIMO technology extends to medical imaging, where multiple antennas function as both receivers and transmitters, with switches playing an essential role in this technology. [11][12][13] The evolution of MIMO has created new opportunities for switches in diverse fields, such as detection, 14,15 radio frequency identification (RFID), 16,17 and fifth-generation (5G) services.…”

Section: Introductionmentioning

confidence: 99%

“…The primary objective of employing MIMO is to enhance channel capacity, data rate, and various communication system parameters 6,7 . A crucial aspect of MIMO is the capability to switch between different antennas, which is vital for managing the connection between the transmitter, receiver, and antennas 8–10 …”

Section: Introductionmentioning

confidence: 99%

Low‐cost ultra‐wideband discrete SPDT switch for K–Ku band in automotive applications and fifth‐generation systems

Bakhshi,

Faramarzi,

Akbari

2024

Micro & Optical Tech Letters

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The article details the development and production of an ultra‐wideband discrete single‐pole‐double‐throw (SPDT) Switch, measuring , and functioning within the 23.4–31 GHz frequency range, encompassing 24 and 28 GHz. This switch is specifically engineered to bolster high‐frequency systems in automotive and fifth‐generation applications. Our findings demonstrate that the discrete SPDT switch performs on par with integrated circuits while delivering consistent performance throughout its frequency spectrum. Furthermore, it offers a cost‐effective fabrication process. The switch exhibits an insertion loss ranging from 1.6 to 2.2 dB, with return loss and isolation surpassing 15 and 25 dB, respectively, across the majority of the frequency bandwidths.

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Wideband mm-wave 30 GHz Pixled MIMO Antenna with Improved Isolation and Radiation Pattern

Veerella,

Ratna Kumari

2024

J Infrared Milli Terahz Waves

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Ultra-wideband MIMO antenna with reconfigurable band notch characteristics and improved isolation

Cited by 9 publications

References 29 publications

Four‐port MIMO Vivaldi antenna for access points

Four‐port MIMO Vivaldi antenna for access points

Low‐cost ultra‐wideband discrete SPDT switch for K–Ku band in automotive applications and fifth‐generation systems

Wideband mm-wave 30 GHz Pixled MIMO Antenna with Improved Isolation and Radiation Pattern

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