Microwave and Optical Technology Letters最新文献

A Wideband Magneto-Electric Dipole Antenna Based on Coaxial Feeding for Sub-6G Applications 基于同轴馈电的Sub-6G宽带磁电偶极子天线

IF 1.2 4区工程技术

Microwave and Optical Technology Letters Pub Date : 2026-04-07 DOI: 10.1002/mop.70583

Yanhong Xu, Chenyu Jia, Nanyue Li, Weiwei Wang, Anyi Wang, Jianqiang Hou

{"title":"A Wideband Magneto-Electric Dipole Antenna Based on Coaxial Feeding for Sub-6G Applications","authors":"Yanhong Xu, Chenyu Jia, Nanyue Li, Weiwei Wang, Anyi Wang, Jianqiang Hou","doi":"10.1002/mop.70583","DOIUrl":"10.1002/mop.70583","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, a stable magneto-electric (ME) dipole antenna with a bandwidth of over 100% is presented based on a coaxial-patch integrated feeding structure. Specifically, a pair of C-shaped slots is etched out of the horizontal patches of E-dipole to introduce a new resonant frequency point at 4.2 GHz. The vertical folded patch of the M-dipole is transformed into an irregular 3D trapezoidal structure, which enables edge currents to form additional loops that couple with the original magnetic ring, thereby generating a new resonance at 3.7 GHz. Furthermore, the traditional planar reflector is replaced by a U‑shaped reflector to improve the antenna's impedance matching characteristic. The coaxial feed is employed to provide DC grounding and a mechanically stable construction. A prototype is fabricated and measured. An impressive 10 dB bandwidth of 104.8% (from 1.35 to 4.32 GHz) is achieved, along with a peak gain of 9.6 dBi and cross-polarization level (CRPL) below −30 dB. The following Sub-6G frequency bands are simultaneously covered: B3 (1.71–1.735 GHz), B39 (1.885–1.915 GHz), n41 (2.515–2.675 GHz), n78 (3.300–3.800 GHz), and 86% of the n77 band (3.8–4.4 GHz). The proposed ME dipole antenna is a good candidate for Sub-6G applications.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Pattern and Polarization Reconfigurable Circular Patch Antenna 一种方向和极化可重构的圆形贴片天线

IF 1.2 4区工程技术

Microwave and Optical Technology Letters Pub Date : 2026-03-30 DOI: 10.1002/mop.70553

Guo-Ping Gao, Wen-Di Guo, Jin-Ming Bai, Li-Jun Jin, Ge Ma, Bin Hu

{"title":"A Pattern and Polarization Reconfigurable Circular Patch Antenna","authors":"Guo-Ping Gao, Wen-Di Guo, Jin-Ming Bai, Li-Jun Jin, Ge Ma, Bin Hu","doi":"10.1002/mop.70553","DOIUrl":"10.1002/mop.70553","url":null,"abstract":"<div>\u0000 \u0000 <p>In this letter, a novel pattern and polarization reconfigurable circular patch antenna is presented. The antenna is fabricated on a substrate of dielectric constant 4.4 and thickness 1.5 mm, and a circular radiation patch and eight symmetrical parasitic patches are loaded above the substrate. All parasitic patches are connected to the circular patch through eight p-i-n diodes, whose ON/OFF states are controlled by four direct current (DC) biases. By applying different voltages to the DC biases, the TM<sub>41</sub> or TM<sub>11</sub> modes of circular patch can be excited, and the antenna can realize reconfiguration between three states: unidirectional mode with <i>x</i>-axis linear polarization, unidirectional mode with <i>y</i>-axis linear polarization and omnidirectional mode with <i>z</i>-axis linear polarization. The measured results show that the proposed antenna could be operated in the 2.4-GHz ISM band. Besides, stable performance of the antenna is obtained when setting on the human body. The proposed antenna has excellent reconfigurability and can be applied in the fields of wireless communication and wearable devices.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147684165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Omnidirectional Broadband Filtering Antenna With Three Radiation Nulls via Cross-Coupling Theory 基于交叉耦合理论的三辐射零点全向宽带滤波天线

IF 1.2 4区工程技术

Microwave and Optical Technology Letters Pub Date : 2026-03-12 DOI: 10.1002/mop.70568

Yuan Dong, Boyu Liu, Kai Huang, Yao Zhang, Jianliang Zhuo, Longfang Ye

{"title":"Omnidirectional Broadband Filtering Antenna With Three Radiation Nulls via Cross-Coupling Theory","authors":"Yuan Dong, Boyu Liu, Kai Huang, Yao Zhang, Jianliang Zhuo, Longfang Ye","doi":"10.1002/mop.70568","DOIUrl":"https://doi.org/10.1002/mop.70568","url":null,"abstract":"<div>\u0000 \u0000 <p>We propose a novel omnidirectional broadband filtering antenna that utilizes three half-wavelength dipole patches of different shapes. Guided by the cross-coupling theory, the antenna introduces two radiation nulls at low and high frequencies by changing the coupling methods between the dipole patches. Additionally, a C-shaped resonant ring is incorporated to introduce a third radiation null to enhance the antenna's filtering performance. Impedance matching is achieved by adding slots to the dipole antenna. The operating range of this filtering antenna is from 1.62 to 2.65 GHz, with a relative bandwidth of 48.36% and a center frequency of 2.13 GHz. The in-band gain ranges from 1.74 to 2.22 dBi, with stable gain within the passband. The out-of-band radiation suppression is 11.5 dB at the low-frequency end and 12 dB at the high-frequency end, indicating good filtering characteristics. The three nulls are located at 1.48, 2.75, and 3.15 GHz, respectively. The antenna's efficiency within the passband is above 90%, while the out-of-band efficiency remains below 10%.</p></div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Broadband Low RCS and High Gain Radiation-Scattering-Integrated Metasurface Antenna Array 宽带低RCS高增益辐射散射集成超表面天线阵列

IF 1.2 4区工程技术

Microwave and Optical Technology Letters Pub Date : 2026-03-12 DOI: 10.1002/mop.70559

Xiaomeng Qin, Hongfei Ren, Juan Xu, Qiuyan Song, Yanhao Huang

引用次数: 0

Broadband Low-RCS Metantenna With Integrated Radiation and Scattering Performance Using Characteristic Mode Analysis 基于特征模分析的宽带低rcs辐射散射综合性能元天线

IF 1.2 4区工程技术

Microwave and Optical Technology Letters Pub Date : 2026-03-12 DOI: 10.1002/mop.70563

Jing-Wen Wang, Xiang Zhang, Jun Ding, Wei-dong Chen, Chang Chen

引用次数: 0

Millimeter-Wave Sliding-Aperture Multibeam Transmitarray With 2-D Scan Capability and Low Scan Loss 具有二维扫描能力和低扫描损耗的毫米波滑动孔径多波束发射阵列

IF 1.2 4区工程技术

Microwave and Optical Technology Letters Pub Date : 2026-03-12 DOI: 10.1002/mop.70571

Wenqian Yang, Mengyuan Wang, Mingxi Han, Le Chang

{"title":"Millimeter-Wave Sliding-Aperture Multibeam Transmitarray With 2-D Scan Capability and Low Scan Loss","authors":"Wenqian Yang, Mengyuan Wang, Mingxi Han, Le Chang","doi":"10.1002/mop.70571","DOIUrl":"https://doi.org/10.1002/mop.70571","url":null,"abstract":"<div>\u0000 \u0000 <p>To address the severe path loss degradation in the millimeter-wave band and its consequential significant reduction in received signal-to-noise ratio, high-gain antennas supporting 2-D beam scanning are critically required. This letter proposes a sliding-aperture 2-D beam-scanning transmitarray (TA) solution. The proposed TA comprises 21 × 41 unit cells, and each unit cell integrates a four-layer metallic Jerusalem cross-slot structure, achieving transmission amplitude within 1.3 dB and phase coverage of 360°. By sliding the feeding source above the aperture along linear and cylindrical trajectories for horizontal and vertical polarization, respectively, 2-D beam steering is realized. Finally, the proposed sliding-aperture TA is fabricated and measured, with measured results showing good agreement with simulated results. The proposed sliding-aperture TA achieves continuous beam coverage of ±40° in the <i>θ</i> direction and ±180° in the <i>φ</i> direction, realizing a peak gain of 24.5 dBi and scan loss of 0.8 dB. Comparative analysis with other multibeam antennas demonstrates that the proposed sliding-aperture TA exhibits significant advantages, including low scan loss, high gain, and wide-angle 2-D coverage, which show broad application in millimeter-wave communication and radar systems.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Broadband Low RCS and High Gain Radiation-Scattering-Integrated Metasurface Antenna Array 宽带低RCS高增益辐射散射集成超表面天线阵列

IF 1.2 4区工程技术

Microwave and Optical Technology Letters Pub Date : 2026-03-12 DOI: 10.1002/mop.70559

Xiaomeng Qin, Hongfei Ren, Juan Xu, Qiuyan Song, Yanhao Huang

引用次数: 0

Omnidirectional Broadband Filtering Antenna With Three Radiation Nulls via Cross-Coupling Theory 基于交叉耦合理论的三辐射零点全向宽带滤波天线

IF 1.2 4区工程技术

Microwave and Optical Technology Letters Pub Date : 2026-03-12 DOI: 10.1002/mop.70568

Yuan Dong, Boyu Liu, Kai Huang, Yao Zhang, Jianliang Zhuo, Longfang Ye

{"title":"Omnidirectional Broadband Filtering Antenna With Three Radiation Nulls via Cross-Coupling Theory","authors":"Yuan Dong, Boyu Liu, Kai Huang, Yao Zhang, Jianliang Zhuo, Longfang Ye","doi":"10.1002/mop.70568","DOIUrl":"https://doi.org/10.1002/mop.70568","url":null,"abstract":"<div>\u0000 \u0000 <p>We propose a novel omnidirectional broadband filtering antenna that utilizes three half-wavelength dipole patches of different shapes. Guided by the cross-coupling theory, the antenna introduces two radiation nulls at low and high frequencies by changing the coupling methods between the dipole patches. Additionally, a C-shaped resonant ring is incorporated to introduce a third radiation null to enhance the antenna's filtering performance. Impedance matching is achieved by adding slots to the dipole antenna. The operating range of this filtering antenna is from 1.62 to 2.65 GHz, with a relative bandwidth of 48.36% and a center frequency of 2.13 GHz. The in-band gain ranges from 1.74 to 2.22 dBi, with stable gain within the passband. The out-of-band radiation suppression is 11.5 dB at the low-frequency end and 12 dB at the high-frequency end, indicating good filtering characteristics. The three nulls are located at 1.48, 2.75, and 3.15 GHz, respectively. The antenna's efficiency within the passband is above 90%, while the out-of-band efficiency remains below 10%.</p></div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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-Isolation Dual-Polarized Ku-Band Array Based on a Surface-Mounted Antenna Element 基于表面天线元件的高隔离双极化ku波段阵列

IF 1.2 4区工程技术

Microwave and Optical Technology Letters Pub Date : 2026-03-12 DOI: 10.1002/mop.70567

Jeen-Sheen Row, Hunh-Ru Dai

引用次数: 0

Millimeter-Wave Sliding-Aperture Multibeam Transmitarray With 2-D Scan Capability and Low Scan Loss 具有二维扫描能力和低扫描损耗的毫米波滑动孔径多波束发射阵列

IF 1.2 4区工程技术

Microwave and Optical Technology Letters Pub Date : 2026-03-12 DOI: 10.1002/mop.70571

Wenqian Yang, Mengyuan Wang, Mingxi Han, Le Chang

{"title":"Millimeter-Wave Sliding-Aperture Multibeam Transmitarray With 2-D Scan Capability and Low Scan Loss","authors":"Wenqian Yang, Mengyuan Wang, Mingxi Han, Le Chang","doi":"10.1002/mop.70571","DOIUrl":"https://doi.org/10.1002/mop.70571","url":null,"abstract":"<div>\u0000 \u0000 <p>To address the severe path loss degradation in the millimeter-wave band and its consequential significant reduction in received signal-to-noise ratio, high-gain antennas supporting 2-D beam scanning are critically required. This letter proposes a sliding-aperture 2-D beam-scanning transmitarray (TA) solution. The proposed TA comprises 21 × 41 unit cells, and each unit cell integrates a four-layer metallic Jerusalem cross-slot structure, achieving transmission amplitude within 1.3 dB and phase coverage of 360°. By sliding the feeding source above the aperture along linear and cylindrical trajectories for horizontal and vertical polarization, respectively, 2-D beam steering is realized. Finally, the proposed sliding-aperture TA is fabricated and measured, with measured results showing good agreement with simulated results. The proposed sliding-aperture TA achieves continuous beam coverage of ±40° in the <i>θ</i> direction and ±180° in the <i>φ</i> direction, realizing a peak gain of 24.5 dBi and scan loss of 0.8 dB. Comparative analysis with other multibeam antennas demonstrates that the proposed sliding-aperture TA exhibits significant advantages, including low scan loss, high gain, and wide-angle 2-D coverage, which show broad application in millimeter-wave communication and radar systems.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0