Aeu-International Journal of Electronics and Communications最新文献_第3页

P-I-N diode-based hybrid mode reconfigurable element antenna for dual-linearly polarized Ka-band antenna array

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-03 DOI: 10.1016/j.aeue.2025.155742

Nguyen Van Thang, Jae-Young Chung

{"title":"P-I-N diode-based hybrid mode reconfigurable element antenna for dual-linearly polarized Ka-band antenna array","authors":"Nguyen Van Thang, Jae-Young Chung","doi":"10.1016/j.aeue.2025.155742","DOIUrl":"10.1016/j.aeue.2025.155742","url":null,"abstract":"<div><div>This study introduces a multi-functional antenna array concept with polarization and phase-out reconfigurability operating in the <em>Ka</em>-band. We propose a novel dual-polarized reconfigurable antenna element featuring 1-bit phase quantization functionality using p-i-n diodes. The element comprises four p-i-n diodes on one symmetrical metallic layer and two bias lines for controlling four main outgoing wave modes. This single antenna offers a bandwidth of 1 GHz in four modes at 27 GHz, along with approximately 180 ° phase conversion for both linear polarization (LP) states. We construct 4 × 4 a multi-functional array with the arrangement of mirroring elements technique to suppress the cross polarization without the requirement for an external phase-shift compared to conventional dual-port method. Measurement results show a peak gain of 14.1 dBi with the XPD of 24 dB. Additionally, we show beam-steering capability <span><math><mo>±</mo></math></span>30 ° of this antenna element when combined with a beamformer offering only continuous 180 ° phase-shift.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"194 ","pages":"Article 155742"},"PeriodicalIF":3.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cavity-stacked filter in CLAF-SIW technology for millimeter waves

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-01 DOI: 10.1016/j.aeue.2025.155725

Cleofás Segura-Gómez , Andrés Biedma-Pérez , David Santiago , Ángel Palomares-Caballero , Iván Arregui , Miguel A. Gómez Laso , Pablo Padilla

{"title":"Cavity-stacked filter in CLAF-SIW technology for millimeter waves","authors":"Cleofás Segura-Gómez , Andrés Biedma-Pérez , David Santiago , Ángel Palomares-Caballero , Iván Arregui , Miguel A. Gómez Laso , Pablo Padilla","doi":"10.1016/j.aeue.2025.155725","DOIUrl":"10.1016/j.aeue.2025.155725","url":null,"abstract":"<div><div>This work presents the design of a cavity-stacked bandpass filter (BPF) using contactless air-filled substrate integrated waveguide (CLAF-SIW) technology for millimeter-wave frequencies. This technology is a variant of air-filled SIW technology, incorporating contactless techniques. It enables the reduction of dielectric losses in SIW filters while supporting multilayer structures with robust assembly. The cavity-stacked filter topology allows for very good frequency responses with a reduced footprint and no transitions needed. As an example, a 4th-order Chebyshev bandpass filter composed of four stacked cavities, coupled through irises, is shown. The iris layers are fabricated by metallizing the slot edges of a PCB, while the cavity layers are implemented using CLAF-SIW. The filter has been designed and manufactured to provide a passband response from 36 GHz to 37.5 GHz. A good agreement between measurement and simulation has been achieved. The losses in the proposed CLAF-SIW filter are primarily due to the metal roughness of the low-cost commercial laminates used.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155725"},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-gain dual-band antenna with independent frequency operation for Sub-6 GHz and millimeter-wave applications

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-01 DOI: 10.1016/j.aeue.2025.155743

Mohamed Sedigh Bizan, Peyman PourMohammadi, Amjad Iqbal, Tayeb A. Denidni

{"title":"High-gain dual-band antenna with independent frequency operation for Sub-6 GHz and millimeter-wave applications","authors":"Mohamed Sedigh Bizan, Peyman PourMohammadi, Amjad Iqbal, Tayeb A. Denidni","doi":"10.1016/j.aeue.2025.155743","DOIUrl":"10.1016/j.aeue.2025.155743","url":null,"abstract":"<div><div>This work presents an innovative dual-band hybrid antenna designed to achieve high gain and superior isolation, catering to both microwave and millimeter-wave applications. The proposed design integrates a cylindrical dielectric resonator antenna (CDRA) for the microwave band and patch ring resonators for the mm-wave band, providing distinct and optimized operation in each frequency range. The antenna design incorporates multiple stages: initially, the CDRA is tailored for efficient microwave performance; next, the patch resonators are configured for mm-wave operation. These components are then combined strategically to ensure compatibility and minimal interference between bands. To enhance the antenna’s functionality, selective filters are applied—specifically, a Low Pass Filter (LPF) for the microwave band and a Band Pass Filter (BPF) for the mm-wave band—mitigating harmonic distortion and improving spectral purity. Additionally, shorting pins are introduced to boost isolation levels between the bands. The resulting antenna achieves notable performance metrics, including bandwidths of 11.7% at 5.8 GHz and 14.3% at 28 GHz, with maximum realized gains of 12.3 dBi and 17.2 dBi, respectively. It also demonstrates exceptional isolation, surpassing 54 dB and 51 dB for the microwave and mm-wave bands. The innovative integration of these design elements enables independent frequency responses, making the proposed antenna a compelling solution for next-generation dual-band communication systems.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155743"},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143550694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diode-resistance circuit – Novel exact and approximate solutions based on the g-function approach

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-01 DOI: 10.1016/j.aeue.2025.155744

Martin Calasan

{"title":"Diode-resistance circuit – Novel exact and approximate solutions based on the g-function approach","authors":"Martin Calasan","doi":"10.1016/j.aeue.2025.155744","DOIUrl":"10.1016/j.aeue.2025.155744","url":null,"abstract":"<div><div>This paper presents a novel method for solving the diode-resistance (D-R) circuit problem via the <em>g</em>-function and Halley’s iterative procedure. First, an original solution for current and voltage in the D-R circuit is developed, providing an analytical framework that offers high accuracy. Second, an approximate solution is proposed for the D-R circuit’s current and voltages through the iterative approach, significantly improving the computational efficiency compared with existing methods. Third, the results are compared with those of MATLAB/SIMSCAPE simulations and four approximate solutions from the literature, revealing superior accuracy and reliability. The findings demonstrate the exceptional precision and efficiency of the proposed methods, offering substantial advantages over previous approaches. Fourth, the experimental results validate all the conclusions drawn from the simulation studies, confirming the practicality and robustness of the proposed solutions. This work highlights the real-world applicability of the proposed methods in circuit design and simulation, particularly when the D-R branch is involved.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155744"},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

14-bit Pipelined SAR ADC with PVT-stabilized time-based amplifier

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-01 DOI: 10.1016/j.aeue.2025.155745

Xingyuan Tong, Yizhang Chen, Xin Xin

{"title":"14-bit Pipelined SAR ADC with PVT-stabilized time-based amplifier","authors":"Xingyuan Tong, Yizhang Chen, Xin Xin","doi":"10.1016/j.aeue.2025.155745","DOIUrl":"10.1016/j.aeue.2025.155745","url":null,"abstract":"<div><div>This paper presents a 14-bit, 20 MS/s Pipelined successive approximation register (SAR) analog-to-digital converter (ADC), which employs a time-based amplifier (TA) and is suitable for wireless communication systems. The proposed TA employs a combination of a voltage-to-time converter (VTC) and a time-to-voltage converter (TVC), to realize the gain robustness by the ratio of currents and capacitor arrays. The ratio of currents is highly independent of the process-voltage-temperature (PVT) variations because the discharge current in the VTC and the charge current in the TVC stem from the identical bias circuit. As a result, the gain robustness of the proposed TA can improve by up to 91.3% compared to the conventional dynamic amplifier. Benefiting from the proposed TA, the 14-bit Pipelined SAR ADC is designed in a 180 nm CMOS process and a supply voltage of 1.8 V. It can achieve a signal-to-noise and distortion ratio (SNDR) of 78.51 dB and a Walden figure of merit of 31.07 fJ/conversion-step. Under different PVT conditions, the SNDR of the proposed Pipelined SAR ADC varies by less than 1.59 dB.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155745"},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143550695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Realization of highly-selective multiband filtering antennas with tunable and reconfigurable characteristics

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-01 DOI: 10.1016/j.aeue.2025.155726

Upasana Nayak , Prasun Chongder , Animesh Biswas

{"title":"Realization of highly-selective multiband filtering antennas with tunable and reconfigurable characteristics","authors":"Upasana Nayak , Prasun Chongder , Animesh Biswas","doi":"10.1016/j.aeue.2025.155726","DOIUrl":"10.1016/j.aeue.2025.155726","url":null,"abstract":"<div><div>This article presents planar multiband filtering antennas with frequency tunable and reconfigurable features. A highly-selective bandpass filter is initially designed using a pair of square open-loop resonators (OLR). To implement a dual-band filter, an open-ended stub is loaded at the center of each resonator. Varactor diodes are introduced to enable continuous tuning of the second band while keeping the first band fixed. Utilizing this approach, a quad-band filter with tunable higher bands is designed and measured. The proposed filter exhibits a wide frequency tuning range of 654 MHz (16.86%) and 930 MHz (21.8%) for the two higher bands, while the first two lower bands remain fixed at 2.74 GHz and 3 GHz. Subsequently, by co-designing the multiband filter with a wideband linear tapered slot antenna (LTSA), multiband filtering antennas are realized. Varactor diodes and PIN diodes are employed to demonstrate multiband filtering antenna with tunability, reconfigurability, and a combination of both. All the filtering antennas are fabricated and validated. The measured results demonstrate stable end-fire radiation patterns, low cross-polarization levels, and high selectivity characterized by two radiation nulls on both sides of each passband in the gain response. All the measured results correlate well with the simulation results.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155726"},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low power memristor circuit with electronically Tunable

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-23 DOI: 10.1016/j.aeue.2025.155746

Fatih Saydam , Fırat Kaçar

{"title":"Low power memristor circuit with electronically Tunable","authors":"Fatih Saydam , Fırat Kaçar","doi":"10.1016/j.aeue.2025.155746","DOIUrl":"10.1016/j.aeue.2025.155746","url":null,"abstract":"<div><div>This paper introduces a charge-controlled memristor emulator (MRE) circuit based on CMOS technology, utilizing the second-generation Current Controlled Current Conveyor (CCCII) as the active element. The proposed MRE circuit is designed as a grounded configuration, incorporating a resistor and a capacitor as passive elements. Mathematical analysis of the circuit was performed, and simulation studies using TSMC 180 nm technology and the LTspice program confirmed the expected pinch hysteresis curves characteristic of memristors. These curves were also obtained under various conditions and parameters to evaluate the circuit’s robustness. To this end, temperature analyses, process corner analyses, and Monte Carlo simulations were performed. The pulse signal response of the proposed circuit was examined, demonstrating its capability to perform in incrementing and decrementing modes. The circuit supports a maximum operating frequency of 150 MHz and features a low power consumption of 2.76 µW. Due to its nonlinear characteristics, proposed MRE is well-suited for chaotic applications. To illustrate this, the circuit was adapted to the Jerk system. Mathematical analyses of the proposed system were performed, and simulation studies in LTspice generated phase portraits that confirmed chaotic behavior. Finally, an experimental study has been realized to demonstrate to feasibility of the proposed MRE, by commercially available components, AD844 and AD633.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155746"},"PeriodicalIF":3.0,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A high-gain, polarization-universal metasurface lens antenna for millimeter-wave communication 用于毫米波通信的高增益、极化通用元面透镜天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-22 DOI: 10.1016/j.aeue.2025.155727

Tianguo Yuan, Jiyang Xie, Xiaolin Yang

引用次数: 0

High-efficiency wideband inductor-less platinum-band CMOS rectifier

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-22 DOI: 10.1016/j.aeue.2025.155737

Willy Jordan, Adel Barakat, Babita Gyawali, Ramesh K. Pokharel

引用次数: 0

Reconfigurable designs of equilateral triangular microstrip antennas for single and dual band circular polarized response in GSM and GPS applications

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-22 DOI: 10.1016/j.aeue.2025.155729

Amit A. Deshmukh, Aniruddh Viswanathan, Prasanna Nadkarni, Venkata A.P. Chavali, Heet Mistry

引用次数: 0