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A Balanced Feed Triple Frequency Patch Loaded Printed Dipole Antenna for WiMAX/WLAN Applications 用于WiMAX/WLAN应用的平衡馈电三频贴片加载印刷偶极子天线
2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI: 10.1109/RFM.2018.8846522
Sayan Sarkar, A. Banerjee, B. Gupta
{"title":"A Balanced Feed Triple Frequency Patch Loaded Printed Dipole Antenna for WiMAX/WLAN Applications","authors":"Sayan Sarkar, A. Banerjee, B. Gupta","doi":"10.1109/RFM.2018.8846522","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846522","url":null,"abstract":"This paper presents a simple inexpensive balanced feed printed dipole antenna on FR-4 substrate with parasitic patches to enhance matching at the frequencies of interest. The antenna resonates in the 2.4GHz band, 3.5GHz band as well as the 5.2GHz band. The integrated balun ensures equal distribution of current to both dipole arms. The antenna is very simple in configuration having dimensions 70 × 58 × 1.52 mm3.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132440586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultra-wideband and Off-optimised Five-Port Reflectometer using Power Splitters 使用功率分配器的超宽带和非优化五端口反射计
2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI: 10.1109/RFM.2018.8846544
K. Lee, Y. Phua, E. Lim, K. You, E. Cheng, Z. Abbas
{"title":"Ultra-wideband and Off-optimised Five-Port Reflectometer using Power Splitters","authors":"K. Lee, Y. Phua, E. Lim, K. You, E. Cheng, Z. Abbas","doi":"10.1109/RFM.2018.8846544","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846544","url":null,"abstract":"This paper presents an ultra-wideband (UWB) and off-optimised Five-Port Reflectometer (FPR) configured by power splitters. The proposed non-multi-state FPR is characterised and realised for complex reflection coefficient determinations. The measurement system can be easily setup using commercial power splitters, three detectors and a microwave source. The transmission lines method is used as calibration standard for FPR measurement system. Both the FPR setup and the transmission lines are characterised with a Vector Network Analyser prior to be used for the off-optimised measurement system. The results show good agreement between actual and calculated reflection coefficient for frequency range of 0.1 to 40 GHz. This novel FPR setup provides a simple, cost effective and accurate alternative in measuring broadband complex reflection coefficient.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125405386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dual Band Rectangular Dielectric Resonator Antenna for Wireless Communication 用于无线通信的双波段矩形介质谐振器天线
2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI: 10.1109/RFM.2018.8846494
M. A. Ashaari, M. Hassan, H. Yon, R. A. Awang
{"title":"Dual Band Rectangular Dielectric Resonator Antenna for Wireless Communication","authors":"M. A. Ashaari, M. Hassan, H. Yon, R. A. Awang","doi":"10.1109/RFM.2018.8846494","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846494","url":null,"abstract":"This paper presents a dual band rectangular Dielectric Resonator Antenna (RDRA). The rectangular dielectric resonator made from alumina is designed on FR4 substrate. The performance of the proposed antenna in terms of return loss, radiation pattern, gain and bandwidth are observed and analysed using CST Microwave Studio software. The simulated dual band resonance frequencies of 7 GHz and 7.96 GHz are achieved. The antenna is fabricated and measured to validate the simulation results. A very good congruence of return loss is demonstrated between simulated and measured results. The measured gain is higher than simulated gain with up to 7.57 dB at 7 GHz. The widest bandwidth of approximately 4.38% is measured at 8 GHz. Thus, this DRA offers a potential multiband operation for wireless communication application.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122237947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Comparison between 2 3D-Printed 2×2 Horn Antenna Arrays at 12.5GHz with Different Feeding Structures 不同馈电结构下2种3d打印2×2 12.5GHz喇叭天线阵列的比较
2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI: 10.1109/RFM.2018.8846541
Maha Hesham El Feshawey, H. Hammad
{"title":"Comparison between 2 3D-Printed 2×2 Horn Antenna Arrays at 12.5GHz with Different Feeding Structures","authors":"Maha Hesham El Feshawey, H. Hammad","doi":"10.1109/RFM.2018.8846541","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846541","url":null,"abstract":"This work introduces a comparison between H- and E-plane-network to feed antenna arrays. Due to the increasing demand for a low cost and a low weight antenna array for different communication applications. In addition to comparing between horn antennas and sub-arrays as aperture elements for both feeding networks, a 2×2 E-plane fed waveguide antenna array comprised of 2×2 aperture elements sub-arrays is designed to operate at 12.5 GHz. The proposed design is fabricated using 3D-printing technology from polymer and metalized in 2 different methods to demonstrate the advantages and challenges of each method. The fabricated design exhibits 16.2% fractional bandwidth with 18 dBi gain and around 16.2% efficiency at the operating frequency which showed good agreement with the simulated results.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131859590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Multibeam Characteristics of an Array Antenna for 5G Mobile Base Station 5G移动基站阵列天线多波束特性研究
2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI: 10.1109/RFM.2018.8846548
Intan Izafina Idrus, T. Latef, Yoshihide Yamada, M. S. A. Talip, N. K. Aridas, T. Rahman
{"title":"Multibeam Characteristics of an Array Antenna for 5G Mobile Base Station","authors":"Intan Izafina Idrus, T. Latef, Yoshihide Yamada, M. S. A. Talip, N. K. Aridas, T. Rahman","doi":"10.1109/RFM.2018.8846548","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846548","url":null,"abstract":"The fifth-generation (5G) mobile communication system requires the multibeam base station antennas to cater to the increasing demand for higher data rates. To clarify the realization of a multibeam array antenna in the millimeter wave band, a feeding network of a Butler matrix circuit was designed at 28 GHz. In this paper, multibeam radiation characteristics using an 8 × 8 Butler matrix with antenna spacing of 0.6λ to 0.8λ are studied to control the multibeam coverage area. The simulated results of main beam direction agree very well with the calculated results of main beam direction. The appearances of grating lobe are observed when the antenna spacing is more than 0.7λ. The gain reductions and radiation pattern deformations are observed.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114822995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Phase Characteristics of Multi-Layer Crossed-dipole FSS in Salisbury Screen Absorber 索尔兹伯里筛网吸收器中多层交叉偶极FSS的相位特性
2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI: 10.1109/RFM.2018.8846559
F. Seman, S. Omar, F. A. Poad, W. Y. Yong, S. Rahim, E. Baharudin, S. Shah
{"title":"Phase Characteristics of Multi-Layer Crossed-dipole FSS in Salisbury Screen Absorber","authors":"F. Seman, S. Omar, F. A. Poad, W. Y. Yong, S. Rahim, E. Baharudin, S. Shah","doi":"10.1109/RFM.2018.8846559","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846559","url":null,"abstract":"In this paper the microwave absorbing properties of multiband Salisbury screen absorber design which is constructed using multi-layer FSS is investigated. The multiband properties are obtained by exploiting the phase change offered by the cross dipole FSS. Hence, the details phase characteristic are important to achieve multi-band characteristics. The structure exhibits triple operating band where the −10 dB reflectivity bandwidth of a Salisbury screen operating at normal incidence is 38.1%, 12.1% and 17.2% at the resonant frequencies of 6.56 GHz, 9.1 GHz and 13.0 GHz respectively. Reflectivity predictions for normal incidence are shown to be in close agreement with bistatic measured results over the frequency range 8 – 12 GHz.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"889 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116172471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Dual Band Circularly Polarized Dielectric Resonator Antenna using DSWPD with Phase Shifter for IRNSS 带移相器的双波段圆极化介质谐振器天线
2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI: 10.1109/RFM.2018.8846518
Pankaj Chaudhary, D. Ghodgaonkar, Sanjeev Gupta, A. Shukla
{"title":"Dual Band Circularly Polarized Dielectric Resonator Antenna using DSWPD with Phase Shifter for IRNSS","authors":"Pankaj Chaudhary, D. Ghodgaonkar, Sanjeev Gupta, A. Shukla","doi":"10.1109/RFM.2018.8846518","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846518","url":null,"abstract":"Compact dual band circularly polarized rectangular dielectric resonator antenna (CPRDRA) using dual section Wilkinson power divider (DSWPD) with wideband 90° phase shifter is investigated for Indian Regional Navigation Satellite System (IRNSS) applications. In this paper, a ground plane area of dual band CPRDRA is miniaturized using high dielectric constant εr= 51.92 of ceramic dielectric resonator and high dielectric constant εr= 10.2 of Rogers R03210 dielectric substrate. The compact ground plane area of dual band CPRDRA is 40 x 40 mm2 and is designed to operate in L5-band- 1.164 to 1.188 GHz with lower band resonant frequency of 1.176 GHz and L1-band- 1.565 to 1.585 GHz with upper band resonant frequency of 1.575 GHz. The simulation and measurement of dual band CPRDRA return loss (RL), right hand circular polarization (RHCP)-left hand circular polarization (LHCP) realized gain and axial ratio (AR) are given in this paper. Simulated and measured RL is better than 10 dB in L5-L1 bands. RHCP in dual band CPRDRA is generated using DSWPD with wideband 90° phase shifter. In broadside direction, dual band CPRDRA RHCP realized gain is higher than the LHCP realized gain by 20 dB. The dual band CPRDRA RHCP realized gain is 1.7 dB at zenith. The compact dual band CPRDRA AR is better than 3 dB from zenith to ±45° at phi=0°, 45° and 90°.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125089832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An Electrically Small Multiband Antenna for USB Dongle Antenna Application 一种适用于USB加密狗天线的小型多波段天线
2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI: 10.1109/RFM.2018.8846502
Muhsin Ali, A. A. Al-Hadi, J. Kazim, Rizwan Khan, Owais, P. Soh
{"title":"An Electrically Small Multiband Antenna for USB Dongle Antenna Application","authors":"Muhsin Ali, A. A. Al-Hadi, J. Kazim, Rizwan Khan, Owais, P. Soh","doi":"10.1109/RFM.2018.8846502","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846502","url":null,"abstract":"An electrically small, low profile, multi-band, wireless USB dongle antenna is proposed in this paper. The antenna is able to operate at LTE 700 in the lower band while in the higher band, it covers GPS (1.6 GHz), DCS 1800/PCS1900 and LTE 2300/2600. Besides that, this antenna also operates over WLAN 2.4/3.6 GHz and WiMAX 3.5 GHz frequency bands. The antenna is designed based on a spiral shaped radiator with an L-shaped stub along its feed line. It is also shown that the proposed antenna has minimized ground plane effect on performance of antenna. It has a compact size of 56 × 9.5 mm2. Fabricated antenna shows a good agreement between simulation and measurement.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123655830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microwave Velocimeter Based on Cross-Correlation for Dual-Phase Flows 基于互相关的双相流微波测速仪
2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI: 10.1109/RFM.2018.8846476
Wesam Taha, Andri Haryono, Mohammed Saif ur Rahman, M. Abou-Khousa
{"title":"Microwave Velocimeter Based on Cross-Correlation for Dual-Phase Flows","authors":"Wesam Taha, Andri Haryono, Mohammed Saif ur Rahman, M. Abou-Khousa","doi":"10.1109/RFM.2018.8846476","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846476","url":null,"abstract":"Accurate velocity measurement of solid particulates in multi-phase flows is critical for many industrial processes. This paper presents a non-intrusive microwave velocimeter for solid particulates in gas/solid flows. The proposed velocimeter is founded upon the cross-correlation principle while operating at 24 GHz. By having two sensors 5 cm apart, the velocity of the particulates is deduced from the relative delay in the reflected waves received by both sensors. The deployed sensor is a hermetically sealed circular waveguide with a custom-made TEM-to-TE11 mode transition. The proposed system is tested experimentally on a 1 inch PVC process pipe. The measurements drawn from the proposed system are benchmarked against a high-speed camera measurements acquired downstream of the microwave velocimeter. Experimental results demonstrate a promising performance that can be further enhanced for real-time velocity measurement in industrial processes.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129286714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Dielectric Properties of Rice Paddy and Sitophilus Oryzae for Microwave Heating Treatment 微波加热对水稻和米象虫介电特性的影响
2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI: 10.1109/RFM.2018.8846563
S. Zulaika, R. A. Rahim
{"title":"Dielectric Properties of Rice Paddy and Sitophilus Oryzae for Microwave Heating Treatment","authors":"S. Zulaika, R. A. Rahim","doi":"10.1109/RFM.2018.8846563","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846563","url":null,"abstract":"This paper present the measurement of the dielectric properties of rice and rice weevil specifically from Sitophilus Oryzae species. This information is useful in controlling insect disinfestation for microwave heating application. Microwave heating is an alternative method to overcome the problem of rice storage in the factory as insect has been recognized as one of the major factor of this matter. The dielectric properties can describe the interaction of the insect with the electromagnetic energy. From this paper, the value of dielectric constant and dielectric loss factor of are determined by using open ended coaxial probe technique. Both values are found vary within the frequency range of 900 MHz to 2.5 GHz and specifically focused at temperature of 82.5°C. These values can be used to further design and understand the microwave heating treatment.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128513797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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