I. Ali, M. Jamaluddin, M. Kamarudin, Abinash Gaya, S. Raghuraman, M. H. Dahri
{"title":"Perforated Dielectric Resonator Antenna Operating on Higher Order Mode","authors":"I. Ali, M. Jamaluddin, M. Kamarudin, Abinash Gaya, S. Raghuraman, M. H. Dahri","doi":"10.1109/RFM.2018.8846499","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846499","url":null,"abstract":"A wideband, high gain perforated dielectric resonator antenna (DRA) is presented in this paper. Higher order TEδ15 mode is excited to enhance the gain, while perforations improve the bandwidth of the proposed antenna by lowering down the quality factor. The perforations are array of symmetrical square shaped slots that are uniformly drilled on the DRA. At 26 GHz, the proposed geometry exhibits a wide impedance bandwidth of 17.33% (24.5–27.8 GHz) and a maximum gain of 9.2 dBi. The simulated radiation efficiency is 94% for the complete bandwidth. ECCOCK HiK TEK material with dielectric constant of 10 is used to form dielectric resonator antenna. The DRA is excited by 50Ω microstrip line with aperture slot. The simulated results have been analyzed and discussed in terms of reflection coefficient, gain, efficiency and radiation patterns. The proposed antenna can be used for Internet of Things (IoT) applications such as Device-to-Device (D2D) Communication.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"39 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":"125456256","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}
F. Seman, F. A. Po'ad, F. Ramadhan, R. Yuwono, Z. Abidin, S. M. Shah
{"title":"Performance Assessment of a Star Patch Antenna based on RSSI Level in Actual Indoor Environments","authors":"F. Seman, F. A. Po'ad, F. Ramadhan, R. Yuwono, Z. Abidin, S. M. Shah","doi":"10.1109/RFM.2018.8846498","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846498","url":null,"abstract":"This paper presents a design of star patch antenna with microstrip line feeding structure, which operates at 2.4 GHz. The antenna is printed on FR-4 board having dielectric constant of 4.4. The performance of antenna is evaluated based on the reflection loss and radiation pattern. The measurements of antenna return loss is done in the laboratory, while the radiation pattern is measured by connecting the developed antenna to the Radio Frequency Identification (RFID) reader in Line of Sight (LOS) indoor environment. The RSSI value is captured by the RFID reader at 10° steps from 0° to 360° and the polar radiation pattern can be plotted. From the measurement, it is observed that the developed antenna is able to support data transmission and reception up to 69 meters distance with maximum input power + 5 dBm. The result shows good agreement between measured data and calculated values, which can be used as a reference for future design.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"377 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":"115476310","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}
F. H. Wee, S. Ibrahim, M. Jusoh, B. S. Yew, L. Y. Seng
{"title":"Multiple bands of Antenna Design Based on Slits Configuration","authors":"F. H. Wee, S. Ibrahim, M. Jusoh, B. S. Yew, L. Y. Seng","doi":"10.1109/RFM.2018.8846528","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846528","url":null,"abstract":"Due to the advancement of communication technology era, human are more exposed to the excessive of electromagnetic waves. In general, electromagnetic field can be produced by our surroundings such as handphones, televisions, computers and also house appliances that uses electricity. This uncontrolled electromagnetic waves can give bad impact to human health itself. In order to minimize the exposure of this waves, an antenna is presented to play the important role in detecting various hazard of electromagnetic waves in the surroundings where a miniaturized multiband microstrip antenna with slits is introduced in this research. This multiband antenna operates in several frequency such as at 0.9 GHz, 1.8 GHz, 2.3 GHz, 3.2 GHz and 5.2 GHz where these frequency are known to be the EM signal that give high risk if human been exposed in everyday life. Compared to the Electromagnetic Detector, this antenna could have more frequency modes instead of the other detectors that have a little frequency modes and specific frequency range such as dual band and triple band. Moreover, the antenna could operate in omnidirectional pattern which it can efficiently detect the electromagnetic waves in 360 degree in our surrounding environment.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"17 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":"121280493","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}
Sung-Su Choi, Faisal Ahmad Sheikh, I. Choi, Hyun Deok Kim
{"title":"Small-Size Modified Meander Line Antenna for Dual-Band (433.92MHz and 2.45GHz) Operation","authors":"Sung-Su Choi, Faisal Ahmad Sheikh, I. Choi, Hyun Deok Kim","doi":"10.1109/RFM.2018.8846478","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846478","url":null,"abstract":"A miniatured dual-band meander line monopole antenna with a size of 60 × 20 mm2 and a considerably short ground plane been proposed for the operations in both 433.92MHz and 2.45GHz bands. The proposed antenna exhibits quite acceptable radiation characteristics at two such resonance frequencies which are not only harmonically unrelated but also are separated by a large band gap. An unconventional non-parodically meandered conductor, two rectangular conductor patches and a short size ground plane were used in the realization of required dual resonance on a FR4 substrate. The proposed conductor meandering scheme is responsible of producing a non-periodic resonance spectrum while the addition of stub like rectangular conductor patches provide the required parasitic impedance to obtain resonances at desired frequencies. The position and size of conductor patches are used to tune and match the required resonance frequencies. The proposed antenna was simulated in ANSYS and provides about -20dB return loss at both frequencies along with a peak total gain of 1.91dB and 4.67dB at 433.92MHz and 2.45GHz respectively.","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":"122449705","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}
{"title":"The Design of Quarter-Wave EBG Antenna","authors":"N. M. Salleh, I. Yusoff, A. Azlan, M. Ali","doi":"10.1109/RFM.2018.8846552","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846552","url":null,"abstract":"The design of a quarter-wave Electromagnetic Band Gap (EBG) substrate antenna is presented in this paper. The designed quarter-wave EBG antenna was compared to a standard quarter-wave patch antenna while both antennas was fabricated using the same material. Both antennas work at the frequency of 2.45GHz. The design was fabricated using FR4 material due to its low cost, easy access and flexibility to design. The antennas was first analyzed by using simulation from the Computer Simulation Technology (CST) software before fabrication process and measured using both the Vector Network Analysers (VNA) and Anechoic Chamber Room (ACR). The results shows that the proposed quarter-wave EBG antenna was better than the quarter-wave patch antenna in terms of size and the path loss.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"125 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121009822","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}
{"title":"UWB Transparent THz antenna for Medical Imaging and Satellite Communication Applications","authors":"T. Saeidi, I. Ismail, W. P. Wen, A. Alhawari","doi":"10.1109/RFM.2018.8846511","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846511","url":null,"abstract":"The mm-wave and terahertz (THz) biomedical imaging shows promising specification in some applications such as quality control, protein characterization, pharmaceutical and cancer detection using non-ionizing radiation. A new UWB transparent antenna with high performance has been designed on polyamide and tetra-ethylene as substrate and copper, gold and ITO as conductors. The proposed antenna has a broad BW from 0.96 THz to 20 THz along with a resonance at 0.6 THz. Furthermore, the antenna presents 6.13 dB maximum gain, 8.2 dBi maximum directivity, 87 % maximum radiation efficiency and reasonable stable radiation pattern throughout the frequency band.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"81 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":"125882449","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}
M. N. Hashim, M. F. Mohd Yusoff, N. M. Abdul Latiff
{"title":"Metamaterial Filtenna at 2.4GHz for Bluetooth Application","authors":"M. N. Hashim, M. F. Mohd Yusoff, N. M. Abdul Latiff","doi":"10.1109/RFM.2018.8846557","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846557","url":null,"abstract":"Nowadays, modern technologies in aerospace, medical electronics and communication systems require reliability and accuracy to support wireless technology standard such as Bluetooth. Thus, there is a huge demand to have a reliable bluetooth antenna for precise measurement. Combination of filter and antenna or also known as filtenna is an alternative solution in the radio frequency (RF) frontend circuit to reduce the transmission losses. Metamaterials (MTM) are materials typically engineered with novel or artificial structures to produce electromagnetic properties that are impossible to retrieve in nature. MTM offer many advantages in electromagnetic applications from microwave to optical range, especially for the radiated-wave devices. In this paper, a MTM filtenna at 2.4GHz for bluetooth application has been proposed and designed. It combines Split Ring Resonator (SRR) band pass filter with Modified Electrical Coupled Resonator (MELC) resonator antenna. The performance of this proposed (MTM) filtenna is then compared with conventional filtenna. From the simulation results, it can be observed that MTM filtenna achieves 6.88% antenna gain improvement, 89.92% return loss improvement and 23.44% overall size reduction as compared to conventional filtenna.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"4 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":"124105080","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}
{"title":"Design of Wideband Dielectric Resonator Antenna with Aperture Coupled technique for 5G Applications","authors":"Abinash Gaya, M. Jamaluddin, M. Kamarudin, I. Ali","doi":"10.1109/RFM.2018.8846537","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846537","url":null,"abstract":"A wideband of 2.64GHz has been achieved by designing a T shaped aperture fed Dielectric Resonator Antenna (DRA). The slot dimensions of rectangular and T shaped aperture are compared and recorded. An efficiency of 95% have been achieved in T shaped slot. The slot dimensions are optimized to get a impedance match with the strip line feed. This antenna can be used for wideband applications in the frequency band of 5G. A gain of 6.3dBi have been achieved through T shape slot design.","PeriodicalId":111726,"journal":{"name":"2018 IEEE International RF and Microwave Conference (RFM)","volume":"17 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":"124176855","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}
N. B. Asan, E. Hassan, S. Redzwan, J. Velander, T. Voigt, R. Augustine
{"title":"Impact of Blood Vessels on Data Packet Transmission Through the Fat Channel","authors":"N. B. Asan, E. Hassan, S. Redzwan, J. Velander, T. Voigt, R. Augustine","doi":"10.1109/RFM.2018.8846488","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846488","url":null,"abstract":"The reliability of intra-body wireless communication systems is very important in medical applications to ensure the data transmission between implanted devices. In this paper, we present newly developed measurements to investigate the effect of blood vessels on the data packet reception through the fat tissue. We use an IEEE 802.15.4-based WBAN prototype to measure the packet reception rate (PRR) through a tissue-equivalent phantom model. The blood vessels are modelled using copper rods. We measure the PRR at the frequency 2.45 GHz for several power levels. The results revealed that the presence of blood vessels aligned with the fat channel has tiny influence on the PRR when measured over the range −25 dBm to 0 dBm power level and for different blood vessels positions. Our investigations show 97% successful PRR through a 10 cm length fat channel in presence of the blood vessels.","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":"114721763","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}
Pei-Yu Lyu, C. Zhang, Sheng-Fuh Chang, Shih-Cheng Lin, Chia-Chan Chang
{"title":"Determination of the Phase Center of Sensing Radars Based on Elliptic Phase-Contour Fitting Method","authors":"Pei-Yu Lyu, C. Zhang, Sheng-Fuh Chang, Shih-Cheng Lin, Chia-Chan Chang","doi":"10.1109/RFM.2018.8846510","DOIUrl":"https://doi.org/10.1109/RFM.2018.8846510","url":null,"abstract":"A novel method for determining the phase center of a millimeter-wave short-range sensing radar with sub-wavelength accuracy requirement is presented. Both the antenna structure and transceiver phase-delay effects on the phase center are included. The phase center position is determined based on the measured phase pattern obtained by modulated-transponder rotational scan and analyzed by means of elliptic phase-contour least-square fitting. The modulation on the transponder is used for suppressing the local-oscillator phase noise. The elliptic phase-contour fitting algorithm gives better fitting accuracy. A 24 GHz short-range sensing radar, composed of two 4×4 series-fed patch antenna arrays and a FMCW/CW transceiver chip, is implemented for the experiment. The phase center of this radar is −8 mm (0.64λo) along the line perpendicular to the antenna structure axis.","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":"130526786","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}