Article
Chemistry, Analytical
Abdul Wajid, Ashfaq Ahmad, Sadiq Ullah, Dong-You Choi, Faiz Ul Islam
Summary: This paper compares the performance of a conventional dual-band antenna with a split-ring resonator (SRR)- and electromagnetic bandgap (EBG)-based dual-band antenna. The SRR-based antenna shows higher gain and better surface wave suppression, making it more efficient and compact. This design is suitable for Internet of Things (IoT) applications in wearable sensor networks.
Article
Engineering, Electrical & Electronic
Pei Yang, Ruirong Dang, Lipin Li
Summary: A polarization-twisting metasurface antenna (PTMA) is proposed to generate dual-band dual-circularly polarized (CP) radiation in the Ku-band. By integrating a dual-linear-to-circular polarization converter (DLCPC) with a linear polarization conversion metasurface (LPCM), the PTMA is capable of realizing both left hand CP (LHCP) and right hand CP (RHCP) radiation.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Long Jin, Zhibin He, Kewei Qian, Shiwei Yuan, Jiuyang Xiao, Yao Sun, Yangmiao Lin
Summary: The designed dual-polarization edge-fed microstrip patch antenna has improved isolation between ports and reduced the impact of feed line to achieve dual-polarization excitation within a single patch antenna for a single layer dielectric structure. The measured results show significant improvements in port-to-port isolation compared to traditional antennas.
IEICE ELECTRONICS EXPRESS
(2021)
Article
Engineering, Electrical & Electronic
Braden P. Smyth, Ashwin K. Iyer
Summary: This study presents a novel dual-band dual-polarized microstrip patch antenna design, which achieves operation with orthogonal linear polarizations at both 3.6GHz and 5.8GHz frequencies. The antenna design is compact, low-profile, fully printed, and fabricated using conventional PCB manufacturing methods, showing superior performance.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Cheng Jin, Jianhong Chen, Binchao Zhang, Lingwen Kong, Sining An, Zhongxia Simon He, Jinlin Liu
Summary: This article proposes a novel methodology to create metallic waveguides with a multilayer integrated vertical-electromagnetic bandgap (EBG) structure, achieving low-cost millimeter-wave (mmWave) slot array antennas. By using a stack of easy-to-process thin metallic etching plates instead of diffusion bonding and welding assembly process, the mmWave waveguide can be designed. The electromagnetic wave leakage between the metallic plates is suppressed using the vertical-EBG structure and antiphasing feeding. The design concept is verified through the presentation of two examples of slot array antennas.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Chai-Eu Guan, Takafumi Fujimoto, Shohei Iwasaki
Summary: The letter presents the design and experimental validation of a polarization-agile circular polarized antenna. It demonstrates the generation of vertical and horizontal linear polarized waves, as well as the quadrature phase difference between orthogonal polarized waves. The antenna's working mechanism is described through a distributed circuit model, and its performance is validated through passive-type and active-type switching circuits.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Jian-Feng Li, Chun-Xu Mao, Duo-Long Wu, Liang-Hua Ye, Gary Zhang
Summary: The dual-beam filtering patch antenna proposed in this study features absorptive and reflective characteristics, allowing for wideband operation and out-of-band suppression to protect the transceiver. The antenna design achieved a sharp roll-off at band edges, with a high in-band gain and suppression of over 15 dB out-of-band.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Multidisciplinary Sciences
Tanjir Alam, Michael Cheffena, Eva Rajo-Iglesias
Summary: In this article, a dual functional antenna system is proposed for both communication and sensing applications. The system uses a frequency selective multipath filter to achieve dual functionality and minimize interference between the antennas. The performance of the antenna sensor is demonstrated through experiments on different substrates and ice/water detection.
SCIENTIFIC REPORTS
(2022)
Article
Computer Science, Information Systems
Van Linh Pham, Son Xuat Ta, Khac Kiem Nguyen, Chien Dao-Ngoc, Nghia Nguyen-Trong
Summary: This paper proposes a new method to design a single-layer dual-band circularly polarized (CP) patch antenna with a small frequency ratio. By exploiting both capacitive and inductive coupling mechanisms, and both orthogonal radiating modes of these patches, the antenna can be designed to operate at two close resonance frequencies. The antenna's simple structure allows it to be easily adapted with meshed configuration for transparent devices.
Article
Computer Science, Information Systems
Soumik Dey, Sukomal Dey, Shiban K. Koul
Summary: This paper presents a hybrid decoupling method using EBG and HP-DGS for achieving high isolation in MIMO antennas at 5G millimeter wave band. By adopting this method, isolation can be improved, radiation performance enhanced, and feed losses minimized.
Article
Engineering, Electrical & Electronic
Mohit Gaharwar, D. C. Dhubkarya
Summary: In this work, a multi-layered rectangular microstrip antenna is designed with a novel feeding technique. The antenna achieves improved gain by optimizing the dimensional parameters and minimizes back-lobe radiation using a perfect ground. The measured results are consistent with the simulation results.
IETE JOURNAL OF RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
Myeong-Jun Kang, Seungyong Park, Kab-Goo Cho, Kyung-Young Jung
Summary: This work presents a high-isolation repeater antenna operating in a frequency range of 3.6-3.7 GHz in a 5G communication system. The antenna uses perpendicularly arranged microstrip patch antennas and incorporates a novel defected ground structure (DGS) and electromagnetic bandgap (EBG) technology to suppress radiation pattern distortion and reduce mutual coupling. Measurement results show no radiation pattern deformation and an isolation improvement of 28 dB over the repeater antenna without the DGS and EBG.
JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE
(2023)
Article
Astronomy & Astrophysics
Malcolm Ng Mou Kehn, Eva Rajo-Iglesias, Tien-Chen Yang
Summary: In this paper, a W-band millimeter-wave antenna for automotive radar systems is designed. It has narrow beamwidths in the elevation plane for detecting vehicles and pedestrians in the forward direction, and wide beamwidth in the horizontal plane. The design includes tilted stubs and an electromagnetic band gap structure to mitigate interference. Prototype testing confirms the design requirements are satisfied.
Article
Telecommunications
Nallagundla Suresh Babu, Abdul Quaiyum Ansari, Deepak Gangwar, Binod Kumar Kanaujia, Sachin Kumar, Surendra Kumar Gupta
Summary: A CPW-fed dual-band circularly-polarized disc-shaped monopole antenna with an EBG array is presented for Wi-MAX, WLAN, and ISM band applications, featuring broader impedance and axial ratio bandwidths. The antenna covers multiple frequency bands, has dual band radiation characteristics, improved gain and radiation efficiency, and a compact, lightweight design.
WIRELESS PERSONAL COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Zhen-Guo Liu, Chao Zhang, Ren-Jie Yin, Wei-Bing Lu
Summary: This communication proposes a novel multifunctional low-profile Fabry-Perot resonator (FPR) antenna integrated with solar cells (SCs). The antenna has high gain, high aperture efficiency, and good low-profile characteristics, while also being able to collect solar energy and provide power supply for the device. This design offers a good solution for self-powered occasions such as outdoor and satellite communication devices.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Optics
Oscar Quevedo-Teruel, Hongsheng Chen, Ana Diaz-Rubio, Gurkan Gok, Anthony Grbic, Gabriele Minatti, Enrica Martini, Stefano Maci, George Eleftheriades, Michael Chen, Nikolay Zheludev, Nikitas Papasimakis, Sajid Choudhury, Zhaxylyk A. Kudyshev, Soham Saha, Harsha Reddy, Alexandra Boltasseva, Vladimir M. Shalaev, Alexander Kildishev, Daniel Sievenpiper, Christophe Caloz, Andrea Alu, Qiong He, Lei Zhou, Guido Valerio, Eva Rajo-Iglesias, Zvonimir Sipus, Francisco Mesa, Raul Rodriguez-Berral, Francisco Medina, Victor Asadchy, Sergei Tretyakov, Christophe Craeye
Article
Chemistry, Physical
Jose-Manuel Poyanco, Francisco Pizarro, Eva Rajo-Iglesias
Article
Chemistry, Physical
Pablo Stuardo, Francisco Pizarro, Eva Rajo-Iglesias
Article
Chemistry, Analytical
Malcolm Ng Mou Kehn, Chih-Kai Hsieh, Eva Rajo-Iglesias
Article
Chemistry, Analytical
Zvonimir Sipus, Katarina Cavar, Marko Bosiljevac, Eva Rajo-Iglesias
Article
Chemistry, Analytical
Jou-Yi Wang, Malcolm Ng Mou Kehn, Eva Rajo-Iglesias
Article
Computer Science, Information Systems
Carlos Sanchez-Cabello, Luis Fernando Herran, Eva Rajo-Iglesias
Article
Physics, Applied
J. M. Poyanco, F. Pizarro, E. Rajo-Iglesias
Summary: The flat wideband lens antenna operating in the Ka band is designed through quasi-optic transformation, manufactured using 3D printing technology for cost-effective and precise production of complex shapes. The antenna exhibits excellent performance with measured gains above 23 dBi across the Ka band.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Analytical
Javier Benavides-Vazquez, Jose-Luis Vazquez-Roy, Eva Rajo-Iglesias
Summary: This paper presents a novel antenna design using a combination of transverse stubs array and Ridge Gap Waveguides for increased directivity. Through careful design and optimization, the antenna achieves high gain and narrow-band response at a frequency of 31.8 GHz.
Article
Chemistry, Multidisciplinary
Francisco Pizarro, Pablo Stuardo, Ricardo Olivares, Eva Rajo-Iglesias
Summary: This article presents a parametric study on the potential use of cold plasma discharges for frequency reconfiguration on a Sievenpiper mushroom metasurface. Results show that it is possible to shift the stop-band generated by the metasurface towards lower frequencies by adjusting the electron density inside plasma tubes. However, additional insertion losses are observed near the plasma frequency.
APPLIED SCIENCES-BASEL
(2021)
Article
Computer Science, Information Systems
Luis Inclan-Sanchez
Summary: This work studies the possibility of creating compact stopband filters using coplanar-coupled EBG resonators in inverted microstrip gap waveguide technology. The filtering characteristics of different configurations of mushroom-type elements are shown, highlighting the behavior of the structure and its main advantages. By designing and building a 5-cell EBG filter, the feasibility of integrating these structures into gap waveguide planar antennas feeding networks is evaluated.
Article
Chemistry, Analytical
Luis Inclan-Sanchez
Summary: A new design of an inverted microstrip Gap Waveguide filtering antenna integrated with two stopband filters is proposed in this work. By using the direct integration approach, the filters can be easily adjusted in the same feeding layer of the antenna without extra circuitry. Experimental results show that the proposed antenna achieves rejection levels greater than 12 dB and 20 dB for the bands below and above the operation band, demonstrating its filtering capability.
Article
Engineering, Electrical & Electronic
Tanjir Alam, Michael Cheffena, Eva Rajo-Iglesias
Summary: In this work, a two-port microwave sensor is proposed for characterizing different dielectric materials by measuring the distance between two transmission zeros in the presence of the material under test (MUT).
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Oscar Quevedo-Teruel, Guido Valerio, Zvonimir Sipus, Eva Rajo-Iglesias
IEEE MICROWAVE MAGAZINE
(2020)
Article
Computer Science, Information Systems
Estefania Crespo-Bardera, Mauricio Rodriguez, Matilde Sanchez-Fernandez, Eva Rajo-Iglesias, Rodolfo Feick, Reinaldo A. Valenzuela
