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Compact UWB wearable antenna with improved bandwidth and low SAR 紧凑型超宽带可穿戴天线，提高了带宽和低SAR
2013 IEEE International RF and Microwave Conference (RFM) Pub Date : 2013-12-01 DOI: 10.1109/RFM.2013.6757225
Wadhah A. M. Al ashwal, K. N. Ramli
{"title":"Compact UWB wearable antenna with improved bandwidth and low SAR","authors":"Wadhah A. M. Al ashwal, K. N. Ramli","doi":"10.1109/RFM.2013.6757225","DOIUrl":"https://doi.org/10.1109/RFM.2013.6757225","url":null,"abstract":"SAR calculation for UWB textile antenna is reported in this paper. This paper presents simulation results of the antenna performance at the conditions of free space and placement at a distance from a portion of a human body. A summary of measurement results of the return loss of the antenna is also included. The simulated S11 parameter shows that the antenna operates within the range 2.25 GHz and 12.19 GHz. The measured return loss has shown that the antenna can operate within 3.04 GHz-10.3 GHz giving a bandwidth of 108%. The performance antenna near to a human body has been simulated and examined. The SAR (10g) has been evaluated using a four-layer body model.","PeriodicalId":187090,"journal":{"name":"2013 IEEE International RF and Microwave Conference (RFM)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122459811","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: 14
High gain 2.4 GHz CMOS low noise amplifier for Wireless Sensor Network Applications 用于无线传感器网络应用的高增益2.4 GHz CMOS低噪声放大器
2013 IEEE International RF and Microwave Conference (RFM) Pub Date : 2013-12-01 DOI: 10.1109/RFM.2013.6757213
S. Murad, R. C. Ismail, M. Isa, M. Ahamd, W. Han
{"title":"High gain 2.4 GHz CMOS low noise amplifier for Wireless Sensor Network Applications","authors":"S. Murad, R. C. Ismail, M. Isa, M. Ahamd, W. Han","doi":"10.1109/RFM.2013.6757213","DOIUrl":"https://doi.org/10.1109/RFM.2013.6757213","url":null,"abstract":"This paper presents high gain CMOS low noise amplifier (LNA) at 2.4 GHz for Wireless Sensor Network Applications. The proposed LNA is developed in 0.13-μm CMOS process. The cascode topology with source degeneration inductor is employed. The high gain is obtained by using common-source (CS) amplifier at the second stage. The simulation results show that the proposed LNA achieves gain of 23.9 dB, input return loss (S11) of -26.9 dB and output return loss (S22) of -20.6 dB. The noise figure (NF) and the input third order intercept point (IIP3) are 5.6 dB and -11.1 dBm, respectively. The total power consumption is 8.1 mW at 1.2 V supply voltage with the chip size is 0.64 mm2 including bond pads.","PeriodicalId":187090,"journal":{"name":"2013 IEEE International RF and Microwave Conference (RFM)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123773822","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: 16
Analysis of wireless system design for aircraft indoor wireless sensor communication 飞机室内无线传感器通信无线系统设计分析
2013 IEEE International RF and Microwave Conference (RFM) Pub Date : 2013-12-01 DOI: 10.1109/RFM.2013.6757229
Saravanan Logan, Manikandan Venugopal
{"title":"Analysis of wireless system design for aircraft indoor wireless sensor communication","authors":"Saravanan Logan, Manikandan Venugopal","doi":"10.1109/RFM.2013.6757229","DOIUrl":"https://doi.org/10.1109/RFM.2013.6757229","url":null,"abstract":"The article presents an Aircraft Indoor Wireless Network (AIWN) model with multi-sensor antenna sequence algorithm that replaces existing indoor wired sensor network in aircraft with wireless sensor network to reduce electrical wiring issues. The proposed aircraft indoor radio transmission of signals from multiple wireless sensors and the space division multiple access technique increases the strength of transmission power and reduces the electromagnetic signal interference. The performance of proposed AIWN model is investigated and validated for aircraft indoor wireless sensor communication. This model controls the aircraft performance and improves the overall capacity of the aircraft indoor wireless system.","PeriodicalId":187090,"journal":{"name":"2013 IEEE International RF and Microwave Conference (RFM)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115020973","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: 4
Design of a Ku-band high gain low noise amplifier ku波段高增益低噪声放大器的设计
2013 IEEE International RF and Microwave Conference (RFM) Pub Date : 2013-12-01 DOI: 10.1109/RFM.2013.6757241
M. A. Bashir, M. M. Ahmed, U. Rafique, Q. Memon
{"title":"Design of a Ku-band high gain low noise amplifier","authors":"M. A. Bashir, M. M. Ahmed, U. Rafique, Q. Memon","doi":"10.1109/RFM.2013.6757241","DOIUrl":"https://doi.org/10.1109/RFM.2013.6757241","url":null,"abstract":"A single stage low noise amplifier is developed for Ku-band applications. The design is aimed to provide low noise figure and high associated gain. Submicron gate length GaAs MESFET is used as an active device because of its superior high frequency properties. Device equivalent circuit parameters are first evaluated with and without pad capacitors using measured S-parameters. Low noise amplifier is then designed by employing common source configuration. Additional circuit components are employed to achieve unconditional stability. Whereas, matching networks of different types are evaluated to achieve VSWR closer to unity. Simulated data showed a bandwidth of 1.63 GHz with minimum noise figure 1.02 dB and 14.1 dB associated gain.","PeriodicalId":187090,"journal":{"name":"2013 IEEE International RF and Microwave Conference (RFM)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122491585","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: 6
Design of a triple frequency band patch antenna on FR4 substrate material 基于FR4基板材料的三频带贴片天线设计
2013 IEEE International RF and Microwave Conference (RFM) Pub Date : 2013-12-01 DOI: 10.1109/RFM.2013.6757282
M. Islam, M. Islam, M. Faruque
{"title":"Design of a triple frequency band patch antenna on FR4 substrate material","authors":"M. Islam, M. Islam, M. Faruque","doi":"10.1109/RFM.2013.6757282","DOIUrl":"https://doi.org/10.1109/RFM.2013.6757282","url":null,"abstract":"In this paper, a triple frequency band patch antenna has been presented on FR4 substrate material. The proposed antenna has been designed on 40 mm× 40 mm printed circuit board and has been excited by microstrip line. High frequency structural simulator (HFSS) based on the finite element method (FEM) has been adopted. This antenna has been composed of circular and rectangular slots to generate multiple resonances. Return loss has been obtained below -10 dB from 9.52 GHz to 16.63GHz. The result has achieved stable Omni directional radiation pattern. The proposed multiband patch antenna has been discussed in details.","PeriodicalId":187090,"journal":{"name":"2013 IEEE International RF and Microwave Conference (RFM)","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114643677","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
Multiple input multiple output radio channel characterisation for ultra wideband body centric wireless communication 用于超宽带体中心无线通信的多输入多输出无线电信道特性
2013 IEEE International RF and Microwave Conference (RFM) Pub Date : 2013-12-01 DOI: 10.1109/RFM.2013.6757257
Q. Abbasi, M. Rehman, S. Liaqat, A. Alomainy
{"title":"Multiple input multiple output radio channel characterisation for ultra wideband body centric wireless communication","authors":"Q. Abbasi, M. Rehman, S. Liaqat, A. Alomainy","doi":"10.1109/RFM.2013.6757257","DOIUrl":"https://doi.org/10.1109/RFM.2013.6757257","url":null,"abstract":"Complete channel knowledge and its accuracy are the basis of an optimized system design. In this paper ultrawideband multiple input multiple output (UWB-MIMO) radio channel characterization for body centric wireless communication is being presented. Body shadowing and body obstruction limits the channel capacity. It has been observed that MIMO antenna technique provide significant increase in capacity for body-centric wireless networks (BCWN). Spatial correlation matrices (complex and power correlation) have been computed and it has been noticed that the correlation values are much higher, where antennas are located in line-of-sight scenario as compared to none-line of sight case. In addition to this, capacity comparison of MIMO antenna with single input single output (SISO) and single input multiple output (SIMO) antenna system shows significant improvement for MIMO case, which supports the applicability of MIMO in BCWN.","PeriodicalId":187090,"journal":{"name":"2013 IEEE International RF and Microwave Conference (RFM)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123082402","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
Dual-wideband G-shaped slotted printed monopole antenna for WLAN and WiMAX applications 用于WLAN和WiMAX应用的双宽带g形开槽印刷单极天线
2013 IEEE International RF and Microwave Conference (RFM) Pub Date : 2013-12-01 DOI: 10.1109/RFM.2013.6757254
W. Marzudi, Z. Abidin
{"title":"Dual-wideband G-shaped slotted printed monopole antenna for WLAN and WiMAX applications","authors":"W. Marzudi, Z. Abidin","doi":"10.1109/RFM.2013.6757254","DOIUrl":"https://doi.org/10.1109/RFM.2013.6757254","url":null,"abstract":"A new dual-wideband printed monopole antenna is presented for satisfying the wireless local area network (WLAN) and the Worldwide Interoperability for Microwave Access (WiMAX) applications simultaneously. A G-shaped slotted printed rectangular monopole antenna with a defected ground plane for band broadening is presented. The antenna was deployed on FR4-Epoxy dielectric substrate with the overall dimensions of the proposed antenna can reach 30 × 48 × 1.6 mm3. Theoretical and experimental characteristic are illustrated for this antenna, which achieved impedance bandwidth of 60.26% (over 2.4-4.47 GHz) and 28.04% (over 4.6-6.1GHz), with a reflection coefficient ≤ -10 dB. The obtained characteristic demonstrates that the proposed antenna is able to operate at dual wideband frequency covering all the WLAN bands and WiMAX bands.","PeriodicalId":187090,"journal":{"name":"2013 IEEE International RF and Microwave Conference (RFM)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130843034","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: 9
The effect of isolation loss towards the beam steering of a parasitic patch array antenna 隔离损耗对寄生贴片阵列天线波束转向的影响
2013 IEEE International RF and Microwave Conference (RFM) Pub Date : 2013-12-01 DOI: 10.1109/RFM.2013.6757277
T. Sabapathy, M. Jamlos, R. Ahmad, M. Jusoh, M. Jais
{"title":"The effect of isolation loss towards the beam steering of a parasitic patch array antenna","authors":"T. Sabapathy, M. Jamlos, R. Ahmad, M. Jusoh, M. Jais","doi":"10.1109/RFM.2013.6757277","DOIUrl":"https://doi.org/10.1109/RFM.2013.6757277","url":null,"abstract":"This paper investigates the effect of isolation loss (ISO) towards the beam steering capability of a parasitic patch array antenna. Parasitic patch antenna is mainly used to steer the main beam towards a desired direction and suppress the signal in unwanted directions. In such a scenario, the ability to steer the beam with reduced side lobe level is considered important to enhance the signal reception while minimizing the unwanted signals such as interference and noise. The investigations carried out in this work explore the insight of the RF switch in order to achieve the beam steering with minimized side lobe level. A three element parasitic patch antenna is designed to achieve beam steering at -30°, 0° and 30°, with minimized side lobe level deployed with the suitable choice of RF switch. Through the investigations conducted in this work, it has been identified that increased ISO at OFF state of the RF switch improves the performance of beam steering.","PeriodicalId":187090,"journal":{"name":"2013 IEEE International RF and Microwave Conference (RFM)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132335671","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
Modeling of interferences on other satellites in maritime satellite communications 海事卫星通信中对其他卫星的干扰建模
2013 IEEE International RF and Microwave Conference (RFM) Pub Date : 2013-12-01 DOI: 10.1109/RFM.2013.6757259
T. Aoyagi, K. Suzaki, Yoshinori Suzuki, T. Hirose, T. Sugiyama
{"title":"Modeling of interferences on other satellites in maritime satellite communications","authors":"T. Aoyagi, K. Suzaki, Yoshinori Suzuki, T. Hirose, T. Sugiyama","doi":"10.1109/RFM.2013.6757259","DOIUrl":"https://doi.org/10.1109/RFM.2013.6757259","url":null,"abstract":"In maritime mobile satellite communications, mechanically controlled tracking systems are used to compensate changes of antenna orientation due to changes of a ship attitude caused by waves or winds of the sea. Orientations of antennas on a ship are limited so that transmitted electromagnetic waves are not affected by structures on the ship. Thus it is allowed to transmit waves when a clearance angle is greater than certain criteria. Our group has researched about fundamental relation between clearance angles and interferences for other satellites or other systems on the ship by numerical simulations for a simplified model. In this report, a realistic ship model is assumed for the simulations. As a result, a clearance angle, which interferences to the receiving satellite are small, has been found out under the conditions of the simulations. A simple model which describes interferences to received levels of the aiming and neighboring satellites is presented.","PeriodicalId":187090,"journal":{"name":"2013 IEEE International RF and Microwave Conference (RFM)","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123476891","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
Design and fabrication of 40GHz hairpin filter using Printed Circuit Board 用印刷电路板设计和制造40GHz发夹滤波器
2013 IEEE International RF and Microwave Conference (RFM) Pub Date : 2013-12-01 DOI: 10.1109/RFM.2013.6757238
A. S. M. Marzuki, A. Naemat, S. Selamat, Azlinda Tee Md Azlan Tee, K. Khalil, Young Chul Lee
{"title":"Design and fabrication of 40GHz hairpin filter using Printed Circuit Board","authors":"A. S. M. Marzuki, A. Naemat, S. Selamat, Azlinda Tee Md Azlan Tee, K. Khalil, Young Chul Lee","doi":"10.1109/RFM.2013.6757238","DOIUrl":"https://doi.org/10.1109/RFM.2013.6757238","url":null,"abstract":"This paper presents the implementation of classical hairpin filter using Printed Circuit Board (PCB) for gigabit wireless application in the millimeter-wave band. The filter has been designed for 2GHz bandwidth at 41GHz center frequency. The filter samples were fabricated using 127μm thick Rogers RT/Duroid 5880 with Ground-Signal-Ground (GSG) pads to facilitate probe measurement. The first cycle of fabrication revealed that the Dielectric Constant (Dk) for designing hairpin filter using RT5880 is lower than the specified process Dk. The second trial exposed that hairpin filters are very sensitive to process tolerance. The filters for the subsequent fabrication manipulated design Dk of 2.1 and tighter process tolerance. The filters then show improved passband shape and return loss. However, the fabricated filters provide larger passband with slightly shifted center frequency than the simulated result due to inaccurate setting in the simulation tool. Nevertheless, the fabricated filters are still valid to be used for the intended application.","PeriodicalId":187090,"journal":{"name":"2013 IEEE International RF and Microwave Conference (RFM)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117146750","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
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