Substrate Integrated Waveguide-Based Full-Duplex Antenna With Improved Out-of-Band Suppression

PourMohammadi, Peyman; Naseri, Hassan; Melouki, Noureddine; Ahmed, Fahad Shabbir; Iqbal, Amjad; Vandenbosch, Guy A. E.; Denidni, Tayeb A.

doi:10.1109/tcsii.2022.3224418

Cited by 6 publications

(9 citation statements)

References 33 publications

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“…The proposed frequency-tunable SQA shows the highest isolation compared to the published SQAs in 16 – 24 , with the exception of the SQA in 23 . Compared to the reported SQAs 16 – 24 , the proposed tunable antenna offers reasonable realized gain, FTBR, and cross-polarization level. The footprint area of our SQA is less than that of 16 , 17 , 24 .…”

Section: Resultsmentioning

confidence: 87%

“…The proposed SQA offers frequency reconfigurability using fluidic channels, which has been demonstrated for the first time in the literature, and not realized in the reported SQAs 16 – 24 . The proposed frequency-tunable SQA shows the highest isolation compared to the published SQAs in 16 – 24 , with the exception of the SQA in 23 . Compared to the reported SQAs 16 – 24 , the proposed tunable antenna offers reasonable realized gain, FTBR, and cross-polarization level.…”

Section: Resultsmentioning

confidence: 91%

“…The performance of the proposed frequency-tunable self-quadruplexing antenna (SQA) is compared with that of previously reported SQAs 16 – 24 , and summarized in Table 6 . The proposed SQA offers frequency reconfigurability using fluidic channels, which has been demonstrated for the first time in the literature, and not realized in the reported SQAs 16 – 24 . The proposed frequency-tunable SQA shows the highest isolation compared to the published SQAs in 16 – 24 , with the exception of the SQA in 23 .…”

Section: Resultsmentioning

confidence: 99%

“…To address the aforementioned issues, a number of SIW-based self-diplexing 10 – 14 , self-triplexing 15 , self-quadruplexing 16 – 24 , self-pentaplexing 25 , and self-hexaplexing 26 , 27 antennas have been studied. A U-shaped slot has been engraved on the top-surface of the SIW to construct a self-diplexing antenna 10 .…”

Section: Introductionmentioning

confidence: 99%

“…In Ref. 24 , half-mode SIW cavity resonators have been employed for the realization of a compact SQA foe microwave and mm-wave applications. Utilization of the SIW cavity featuring T-shaped and П-shaped slots, led to a development of a self-quintuplexing antenna 25 .…”

Section: Introductionmentioning

confidence: 99%

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Microfluidically frequency-reconfigurable compact self-quadruplexing tunable antenna with high isolation based on substrate integrated waveguide

Barik,

Koziel

2024

Sci Rep

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This communication presents a novel concept of microfluidically frequency-reconfigurable self-quadruplexing tunable antenna for quad-band applications. At the initial design stage, a substrate-integrated square cavity is divided into four unequal quarter-mode cavity resonators by inserting an X-shaped slot on the top surface of the cavity. Applying four 50-Ω microstrip feed-lines to these four quarter-mode cavity resonators enables quad-band operation with self-quadruplexing capabilities. The feed lines are organized orthogonally and off-center, which leads to port isolation greater than 32.3 dB. An equivalent network model is developed to validate the proposed antenna. To realize frequency reconfigurability, two microfluidic channels corresponding to each port are created by engraving the bottom surface of the cavity. To create a reconfigurable self-quadruplexing antenna, the channels are either filled with air or dielectric liquids of higher permittivity, so that the design offers independent tunability of the operating frequencies. As a proof of concept, the prototype of a self-quadruplexing tunable antenna is fabricated and validated through measurements. The antenna prototype occupies a footprint area of 0.37λg2. The design exhibits frequency tuning ranges of 350 MHz (8.3%), 500 MHz (10.3%), 610 MHz (11.2%), and 845 MHz (14.1%) for the first, second, third, and fourth operating bands, respectively. In all bands and across the entire tuning range, the realized gains of the designed antenna exceed 4.05 dBi. The electromagnetic modeling responses agree extremely well with the measured characteristics.

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Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Microfluidically frequency-reconfigurable compact self-quadruplexing tunable antenna with high isolation based on substrate integrated waveguide

Barik,

Koziel

2024

Sci Rep

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A self‐quadruplexing antenna for quad‐band wireless applications

Gautam,

Kumar,

Murmu

et al. 2024

Micro & Optical Tech Letters

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This paper presents a compact self‐quadruplexing antenna (SQA) designed through the utilization of substrate‐integrated rectangular cavity (SIRC) technology for quad‐band applications. It operates at four distinct frequencies, which are 3.29, 4.27, 5.20, and 5.72 GHz. The antenna's maximum gains were estimated to be 5.09, 6.46, 5.79, and 6.21 dBi at their respective operating frequencies. The proposed antenna has minimum 24.42 dB isolation among the any two resonance frequencies. Moreover, variation in the patch length enables individual control over all resonant frequencies. The proposed antenna exhibits high isolation, compactness, and independent impedance control, making it well‐suited for compact and planar radio frequency systems.

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Compact Substrate-Integrated Hexagonal Cavity-Backed Self-Hexaplexing Antenna for Sub-6 GHz Applications

Jayaprakash,

Chandu,

Barik

et al. 2024

IEEE Access

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A self-multiplexing SIW antenna based on hexagonal SIW cavity is proposed. The structure consists of resonating elements of different sizes, which provide the hexaband operations. The antenna resonates at 5 GHz, 5.17 GHz, 5.32 GHz, 5.53 GHz, 5.62 GHz, and 5.72 GHz by employing different slot lengths between the resonating elements. The antenna geometry is arranged so that independent tuning of individual operating frequencies is possible without affecting the remaining center frequencies. The selfhexaplexing antenna exhibits a port isolation better than 29 dB between the resonating elements with a low frequency ratio of 1.14. The simulated gain of the antenna is 5.32 dBi, 5.68 dBi, 5.41 dBi, 5.91 dBi, 5.43 dBi and 5.14 dBi at the respective operating frequencies. The proposed self-hexaplexer operates in the NR band (n46) therefore being suitable for communication system applications.INDEX TERMS Substrate-integrated waveguide, frequency ratio, isolation, self-hexaplexing antenna, tunability.

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Substrate Integrated Waveguide-Based Full-Duplex Antenna With Improved Out-of-Band Suppression

Cited by 6 publications

References 33 publications

Microfluidically frequency-reconfigurable compact self-quadruplexing tunable antenna with high isolation based on substrate integrated waveguide

Microfluidically frequency-reconfigurable compact self-quadruplexing tunable antenna with high isolation based on substrate integrated waveguide

A self‐quadruplexing antenna for quad‐band wireless applications

Compact Substrate-Integrated Hexagonal Cavity-Backed Self-Hexaplexing Antenna for Sub-6 GHz Applications

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