A Compact Substrate Integrated Waveguide Cavity-Backed Self-Triplexing Antenna

Iqbal, Amjad; Selmi, Marwa; Abdulrazak, Lway Faisal; Saraereh, Omar A.; Mallat, Nazih Khaddaj; Smida, Besma

doi:10.1109/tcsii.2020.2966527

Cited by 57 publications

(41 citation statements)

References 20 publications

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“…When the WPT and data telemetry bands are closer, the WPT suppresses the telemetry band due to the receiving WPT power, which is much higher than the transmission power of the implant [25]. To address these issues, we introduced the concept of self-diplexing to maintain compactness [29], [30] and to be operated in dual modes (transmission and reception) simultaneously. Moreover, there is no external circuitry (multiplexer circuit) required in the self-multiplexing antennas.…”

Section: Biotelemetry and Wireless Powering Of Biomedicalmentioning

confidence: 99%

Biotelemetry and Wireless Powering of Biomedical Implants Using a Rectifier Integrated Self-Diplexing Implantable Antenna

Iqbal

Al‐Hasan

Mabrouk

et al. 2021

IEEE Trans. Microwave Theory Techn.

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This article proposes an efficient and complete wireless power transfer (WPT) system (WPTS) for multipurpose biomedical implants. The WPTS is composed of a self-diplexing implantable antenna, efficient rectifier, and WPT transmitter (WPT Tx). The proposed system is capable of simultaneously transmitting recorded data and recharging the batteries of the devices (so as to elongate the implant life). The WPT Tx occupies dimensions of 50 × 50 × 1.6 mm 3 and is optimized to effectively transfer power at 1470 MHz to a 55-mm deep implantable device. An efficient and compact (3.4 × 6.7 mm 2 ) rectifier is used at 1470 MHz to convert the harvested RF power into a useful direct current (dc) power. The proposed rectifier circuit exhibits a high conversion efficiency of 50% even at an input power of −14 dBm and maximum efficiency of 76.1% at 2 dBm. The proposed self-diplexing implantable antenna occupies small dimensions (9.4 mm 3 ) and operates at 915 and 1470 MHz by exciting ports 1 and 2, respectively. The biotelemetry operation is performed using a 915 MHz band (port 1), and the rectifier circuit is connected to port 2 (1470 MHz) to perform wireless powering. The simulated results are validated by examining the individual elements (WPT Tx, rectifier, and self-diplexing antenna) and overall WPTS in a saline solution and minced pork. The results prove that the proposed scheme is suitable for biotelemetry and wireless powering of biomedical implants.

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Section: Biotelemetry and Wireless Powering Of Biomedicalmentioning

confidence: 99%

Biotelemetry and Wireless Powering of Biomedical Implants Using a Rectifier Integrated Self-Diplexing Implantable Antenna

Iqbal

Al‐Hasan

Mabrouk

et al. 2021

IEEE Trans. Microwave Theory Techn.

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“…However, their operation, due to their single-port topology, is limited to only one mode (transmit or receive). Therefore, additional multiplexers with high isolation levels are needed for simultaneous mode operations [3]. Nevertheless, additional multiplexer circuitry consumes more power, and increases the system's complexity, cost, and overall geometry [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Ultracompact Quarter-Mode Substrate Integrated Waveguide Self-Diplexing Antenna

Iqbal

Al‐Hasan

Mabrouk

et al. 2021

Antennas Wirel. Propag. Lett.

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A highly compact substrate integrated waveguide (SIW) self-diplexing antenna, operating at wireless local area network bands (3.6 and 5.4 GHz), is proposed in this letter. The proposed antenna consists of two closely placed (0.022λ g , where λ g is the guided wavelength at 3.6 GHz) quarter-mode SIW resonators, exited by two coaxial probes. Two rectangular slots are added to the closed-ends of each resonator to generate additional capacitances. Therefore, both resonators operate below their fundamental frequencies, and hence, miniaturization is achieved. Moreover, a reliable circuit model is developed to validate the design process. The proposed antenna has ultracompact dimensions of 0.08λ 2 g with simulated gains of 4.9 and 5.34 dBi at 3.6 and 5.4 GHz, respectively. In addition, the simulated isolation levels are 32.5 and 36.6 dB at the lower and higher resonant bands, respectively. Furthermore, both resonant frequencies can be independently controlled by changing the length of the capacitive slots. Due to its compactness, independent resonance control and high isolation, the proposed antenna is suitable for compact and planar radio frequency components.

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“…SIWs were initially recognized as post-wall waveguides [12] or laminated waveguides [13] and then a lot of developments were made to use them for antennas [19], [20], filters [21], [22], couplers, mixers [23], diplexers [24], [25], oscillators [26], [27], and circulators [28]. It is evident that SIW technology is used for all classical waveguide components [19], [28]. The majority of the aforementioned RF components, which are based on SIW technology, work below 30 GHz and few at above 30 GHz [29]- [32].…”

Section: Introductionmentioning

confidence: 99%

Miniaturization Trends in Substrate Integrated Waveguide (SIW) Filters: A Review

et al. 2020

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This review provides an overview of the technological advancements and miniaturization trends in Substrate Integrated Waveguide (SIW) filters. SIW is an emerging planar waveguide structure for the transmission of electromagnetic (EM) waves. SIW structure consists of two parallel copper plates which are connected by a series of vias or continuous perfect electric conductor (PEC) channels. SIW is a suitable choice for designing and developing the microwave and millimetre-wave (mm-Wave) radio frequency (RF) components: because it has compact dimensions, low insertion loss, high-quality factor (QF), and can easily integrate with planar RF components. SIW technology enjoys the advantages of the classical bulky waveguides in a planar structure; thus is a promising choice for microwave and mm-Wave RF components. INDEX TERMSCoupling topology, filters, isolation, metallic via, substrate integrated waveguide (SIW), transmission zero (TZ).

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A Compact Substrate Integrated Waveguide Cavity-Backed Self-Triplexing Antenna

Cited by 57 publications

References 20 publications

Biotelemetry and Wireless Powering of Biomedical Implants Using a Rectifier Integrated Self-Diplexing Implantable Antenna

Biotelemetry and Wireless Powering of Biomedical Implants Using a Rectifier Integrated Self-Diplexing Implantable Antenna

Ultracompact Quarter-Mode Substrate Integrated Waveguide Self-Diplexing Antenna

Miniaturization Trends in Substrate Integrated Waveguide (SIW) Filters: A Review

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