publications:
- title: "\"Design of 12W X-band Cascade Power Amplifier\""
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: " L.H.Chua and S.H.Tan"
    link: "https://researchr.org/alias/l.h.chua-and-s.h.tan"
  year: "2004"
  month: "Oct"
  doi: "http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1411060"
  abstract: "To achieve optimum electrical performance of a high power amplifier (HPA), there are many considerations that need to be taken care of, such as impedance matching, bias network design, grounding and heat sinking of the HPA device. Nowadays, most semiconductor manufacturers produce internally matched HPA devices to shorten the user's development time. Even though the device used is internally matched, ignorance of the above considerations may lead to device breakdown or oscillation. We present the design of a bias network and a simple microwave coupler with the primary consideration of low insertion loss at 8.3 GHz. Taking account of the practical considerations, we design and evaluate 2 W and 12 W HPA separately prior to integrating them with a coupler. In all cases, excellent measurement results are obtained"
  links:
    doi: "http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1411060"
    successor: "https://researchr.org/publication/Power-Amplifier-1"
  tags:
  - "design"
  researchr: "https://researchr.org/publication/satellite-PA-2"
  cites: 0
  citedby: 0
  journal: "RF & Microwave Conference (RFM2004), Malaysia"
  kind: "article"
  key: "satellite-PA-2"
- title: "“Chip card and method for fabricating a chip card”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: "Christophe Mathieu"
    link: "https://researchr.org/alias/christophe-mathieu"
  year: "2017"
  month: "Mar"
  doi: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2018158644"
  links:
    doi: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2018158644"
  researchr: "https://researchr.org/publication/and-Yean-Wei-Yeap2017"
  cites: 0
  citedby: 0
  howpublished: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2018158644"
  kind: "misc"
  key: "and-Yean-Wei-Yeap2017"
- title: "\"Design of X-band High Power Cascade Amplifier\""
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: "Tan Soon Hie"
    link: "https://researchr.org/alias/tan-soon-hie"
  - name: "Goh Cher Hiang"
    link: "https://researchr.org/alias/goh-cher-hiang"
  year: "2007"
  month: "Jan"
  doi: "http://www.highfrequencyelectronics.com/Archives/Jan07/HFE0107_Wei.pdf"
  abstract: "This article is the design case history of a 10-watt X-band power amplifier module for either satellite or terrestrial microwave communications."
  links:
    doi: "http://www.highfrequencyelectronics.com/Archives/Jan07/HFE0107_Wei.pdf"
  tags:
  - "history"
  - "design"
  researchr: "https://researchr.org/publication/Power-Amplifier-0"
  cites: 0
  citedby: 0
  journal: "High Frequency Electronics Journal"
  kind: "article"
  key: "Power-Amplifier-0"
- title: "\"X-Sat Communications System\""
  author:
  - name: "T.W. Chua"
    link: "https://researchr.org/alias/t.w.-chua"
  - name: " K.I. Timothy"
    link: "https://researchr.org/alias/k.i.-timothy"
  - name: " K.Y Li Cary"
    link: "https://researchr.org/alias/k.y-li-cary"
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: " E.C. Teh"
    link: "https://researchr.org/alias/e.c.-teh"
  - name: " S.L. Lim Sharon"
    link: "https://researchr.org/alias/s.l.-lim-sharon"
  - name: " S.H. Tan and K. Arichandran"
    link: "https://researchr.org/alias/s.h.-tan-and-k.-arichandran"
  year: "2004"
  month: "Nov"
  researchr: "https://researchr.org/publication/X-sat"
  cites: 0
  citedby: 0
  journal: "Proceeding of 1st Asian Space Conference (ASC), Thailand"
  kind: "article"
  key: "X-sat"
- title: "“Method for Manufacturing a SIM Card and SIM Card”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  year: "2018"
  month: "Jan"
  doi: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2019138260&_cid=P11-JZ2HV4-40030-1"
  links:
    doi: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2019138260&_cid=P11-JZ2HV4-40030-1"
  researchr: "https://researchr.org/publication/Yeap2018"
  cites: 0
  citedby: 0
  howpublished: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2019138260&_cid=P11-JZ2HV4-40030-1"
  kind: "misc"
  key: "Yeap2018"
- title: "\"Evaluation of UWB Signal Transmission, Propagation and Reception with Low Cost UWB RF Front-end\""
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: " O.M.Chai and C.L.Law"
    link: "https://researchr.org/alias/o.m.chai-and-c.l.law"
  year: "2004"
  month: "Oct"
  doi: "http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1411079"
  abstract: "We present ultra wideband signal measurements in an indoor environment using a simple UWB transmitter and receiver at some defined ranges. At the transmitter side, the UWB source is generated using a low cost sub-nanosecond impulse generator, triggered by a rectangular pulse, and transmitted with SkyCross's UWB antenna. At the receiver side, the UWB signal is received by SkyCross's UWB antenna and subsequently amplified by an ultra wideband low noise amplifier (LNA). The frequency spectrum and time domain waveform of the UWB signal, transmitted and received over defined ranges, is presented. The primary study in this paper is to demonstrate short-range low power UWB signal transmission, propagation and reception and its simplicity of implementation."
  links:
    doi: "http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1411079"
  tags:
  - "meta-model"
  - "source-to-source"
  - "Meta-Environment"
  - "open-source"
  - "meta-objects"
  researchr: "https://researchr.org/publication/UWB-Signal-Transmission-Propagation-and-Reception"
  cites: 0
  citedby: 0
  journal: "RF & Microwave Conference (RFM2004), Malaysia"
  kind: "article"
  key: "UWB-Signal-Transmission-Propagation-and-Reception"
- title: "“Predicting Probable Cavity Resonance with a 3D EM Tool”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: " Frank Demming-Janssen"
    link: "https://researchr.org/alias/frank-demming-janssen"
  - name: " Linus Lau Ngie Ung"
    link: "https://researchr.org/alias/linus-lau-ngie-ung"
  researchr: "https://researchr.org/publication/Cavity-Resonance-1"
  cites: 0
  citedby: 0
  kind: "article"
  key: "Cavity-Resonance-1"
- title: "“Effects of Grounding and Bias Circuit on the Performance of High Frequency Linear Amplifiers”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: " P. Gale and E. Korolkiewicz"
    link: "https://researchr.org/alias/p.-gale-and-e.-korolkiewicz"
  year: "2003"
  month: "Feb"
  doi: "http://www.mwjournal.com/Journal/article.asp?HH_ID=AR_4828"
  abstract: "The design of a high frequency amplifier is normally based on the S-parameters supplied by the manufacturer of the active device. However, in a practical design, these parameters are affected by the DC bias network and the grounding of the active device. This article shows how the grounding of the MMIC IC chip, using vias, and the DC bias circuit influence the performance of a practical amplifier. The results of this investigation are used to design single-ended, balanced and two-stage amplifiers, operating at 2.45 GHz. In all cases, the measured results obtained are in good agreement with those predicted by simulation."
  links:
    doi: "http://www.mwjournal.com/Journal/article.asp?HH_ID=AR_4828"
  tags:
  - "design science"
  - "rule-based"
  - "e-science"
  - "design"
  researchr: "https://researchr.org/publication/Linear-Amplifier"
  cites: 0
  citedby: 0
  journal: "Microwave Journal"
  volume: "46"
  number: "2"
  kind: "article"
  key: "Linear-Amplifier"
- title: "“Design of 3.5W S-band Power Amplifier Based on Small Signal S-parameters Analysis”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: " L.H.Chua and S.H.Tan"
    link: "https://researchr.org/alias/l.h.chua-and-s.h.tan"
  year: "2004"
  month: "Jul"
  doi: "http://www.mwjournal.com/Journal/article.asp?HH_ID=AR_1055&tite=Design%20of%20a%203.5%20W%20S-band%20Power%20Amplifier%20Based%20on%20Small-signal%20S-parameter%20Analysis"
  abstract: "Large-signal device S-parameters are usually used in power amplifier (PA) designs to obtain the desired output power. The large-signal characteristics of a power transistor can be accurately extracted from load-pull measurements as described in the literature,1 but the required set up can be expensive and the measurement procedure time consuming. Furthermore, the output load impedance of a power device may not be consistent from chip to chip. Although large-signal S-parameters for a device can be accurately extracted from load-pull measurements, the matching network designed from them will not necessarily match to the desired output load impedance of another device. Further constraints are that the test power of a commercial vector network analyzer (VNA) is normally low (+10 dBm) while the maximum input power to a VNA is limited to 1 W (+30 dBm). Additional equipment is needed in order for the designer to measure the large-signal S-parameters. This article shows an alternate and yet simple approach to the design of high frequency power amplifiers using small-signal S-parameters to first match a commercial power device for gain, followed by a passive load-pull to achieve 3.5 W of output power at 2.212 GHz, with a power-added efficiency (PAE) of approximately 52 percent. Based on the small-signal analysis, it is shown that the output load impedance can be easily located on a Smith chart for tuning. This flexible approach eases the on-board tuning when the PA is cascaded with other microwave circuits. Excellent results are achieved based on the small-signal S-parameters approach."
  links:
    doi: "http://www.mwjournal.com/Journal/article.asp?HH_ID=AR_1055&tite=Design%20of%20a%203.5%20W%20S-band%20Power%20Amplifier%20Based%20on%20Small-signal%20S-parameter%20Analysis"
  tags:
  - "rule-based"
  - "testing"
  - "analysis"
  - "constraints"
  - "design"
  - "systematic-approach"
  researchr: "https://researchr.org/publication/PA-Design"
  cites: 0
  citedby: 0
  journal: "Microwave Journal"
  volume: "47"
  number: "7"
  kind: "article"
  key: "PA-Design"
- title: "“Design a Simple, Low-Cost UWB Source”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  year: "2006"
  month: "Dec"
  doi: "http://www.mwrf.com/Articles/Index.cfm?Ad=1&ArticleID=14306"
  abstract: "Using an inexpensive commercial step recovery diode (SRD) and a handful of passive circuit elements, it is possible to design a low-cost impulse generator for pulse-based UWB systems."
  links:
    doi: "http://www.mwrf.com/Articles/Index.cfm?Ad=1&ArticleID=14306"
  tags:
  - "rule-based"
  - "source-to-source"
  - "design"
  - "open-source"
  researchr: "https://researchr.org/publication/UWB-Source"
  cites: 0
  citedby: 0
  journal: "RF & Microwave"
  volume: "45"
  number: "23"
  kind: "article"
  key: "UWB-Source"
- title: "“Method of manufacturing a Laminate substrate for Smart Cards”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: "Roland Guillemain"
    link: "https://researchr.org/alias/roland-guillemain"
  year: "2016"
  month: "Nov"
  doi: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2017095332"
  links:
    doi: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2017095332"
  researchr: "https://researchr.org/publication/Yean-Wei-Yeap2016"
  cites: 0
  citedby: 0
  howpublished: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2017095332"
  kind: "misc"
  key: "Yean-Wei-Yeap2016"
- title: "\"RFID Antenna on Ferrite\""
  author:
  - name: "Christophe Mathieu"
    link: "https://researchr.org/alias/christophe-mathieu"
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  year: "2012"
  month: "Sep"
  doi: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2013037762&recNum=269&docAn=EP2012067718&queryString=adapter&maxRec=604927"
  links:
    doi: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2013037762&recNum=269&docAn=EP2012067718&queryString=adapter&maxRec=604927"
  researchr: "https://researchr.org/publication/MathieuYeapMathieuYeap2012"
  cites: 0
  citedby: 0
  howpublished: "https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2013037762&tab=PCTBIBLIO"
  kind: "misc"
  key: "MathieuYeapMathieuYeap2012"
- title: "“Ultra Wideband Signal Generation”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  year: "2005"
  month: "Sep"
  doi: "http://www.mwjournal.com/Journal/article.asp?HH_ID=AR_159&tite=Ultra%20Wideband%20Signal%20Generation"
  abstract: "Presentation of the characteristics of sub-nanosecond rectangular pulses in the frequency domain."
  links:
    doi: "http://www.mwjournal.com/Journal/article.asp?HH_ID=AR_159&tite=Ultra%20Wideband%20Signal%20Generation"
  researchr: "https://researchr.org/publication/UWB-Signal"
  cites: 0
  citedby: 0
  journal: "Microwave Journal"
  volume: "48"
  number: "9"
  kind: "article"
  key: "UWB-Signal"
- title: "“Predicting Probable Cavity Resonance with a 3D EM Tool”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: " Frank Demming-Janssen"
    link: "https://researchr.org/alias/frank-demming-janssen"
  - name: " Linus Lau Ngie Ung"
    link: "https://researchr.org/alias/linus-lau-ngie-ung"
  year: "2008"
  month: "Jan"
  doi: "http://www.highfrequencyelectronics.com/Archives/Jan08/HFE0108_Yean-Wei.pdf"
  abstract: "Electromagnetic analysis can be used to predict resonances inside microwave modules, allowing the designer to implement measures to avoid poor performance and instability."
  links:
    doi: "http://www.highfrequencyelectronics.com/Archives/Jan08/HFE0108_Yean-Wei.pdf"
  tags:
  - "analysis"
  researchr: "https://researchr.org/publication/Cavity-Resonance"
  cites: 0
  citedby: 0
  journal: "High Frequency Electronics Journal"
  kind: "article"
  key: "Cavity-Resonance"
- title: "\"High Speed Microwave Transmission System for a LEO Micro-Satellite Platform\""
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  year: "2007"
  month: "Jul"
  doi: "http://www.eee.ntu.edu.sg/CurrentStudents/Graduate/MEngPhD/Documents/Meng%20Thesis%20Completed%20as%20at%2015%20September%202009.doc"
  links:
    doi: "http://www.eee.ntu.edu.sg/CurrentStudents/Graduate/MEngPhD/Documents/Meng%20Thesis%20Completed%20as%20at%2015%20September%202009.doc"
  researchr: "https://researchr.org/publication/LEO-sat-microwave"
  cites: 0
  citedby: 0
  school: "EEE"
  kind: "mastersthesis"
  key: "LEO-sat-microwave"
- title: "\"Sim Card and Manufacturing Method\""
  author:
  - name: "Bertrand Hoveman"
    link: "https://researchr.org/alias/bertrand-hoveman"
  - name: " Jean Jacques Mischler"
    link: "https://researchr.org/alias/jean-jacques-mischler"
  - name: " Wai Ping Mok"
    link: "https://researchr.org/alias/wai-ping-mok"
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  year: "2011"
  month: "Oct"
  doi: "PCT"
  researchr: "https://researchr.org/publication/HovemanMischlerMokYeapHovemanMischlerMokYeap2011"
  cites: 0
  citedby: 0
  howpublished: "https://patents.google.com/patent/WO2012059813A3/de"
  kind: "misc"
  key: "HovemanMischlerMokYeapHovemanMischlerMokYeap2011"
- title: "“Design of Linear S-band Power Amplifier with High Power Added Efficiency”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: " E.C.Teh and T.W.Chua"
    link: "https://researchr.org/alias/e.c.teh-and-t.w.chua"
  year: "2005"
  month: "Apr"
  doi: "http://www.mwjournal.com/Journal/article.asp?HH_ID=AR_356&tite=Design%20of%20Linear%20S-band%20Power%20Amplifiers%20with%20High%20Power-added%20Efficiency"
  abstract: "Presentation of a simple design trade-off to minimize the nonlinear distortion of a power amplifier without significantly degrading the power gain and output power"
  links:
    doi: "http://www.mwjournal.com/Journal/article.asp?HH_ID=AR_356&tite=Design%20of%20Linear%20S-band%20Power%20Amplifiers%20with%20High%20Power-added%20Efficiency"
  tags:
  - "design"
  researchr: "https://researchr.org/publication/S-band-PA"
  cites: 0
  citedby: 0
  journal: "Microwave Journal"
  volume: "48"
  number: "4"
  kind: "article"
  key: "S-band-PA"
- title: "“Definition of UWB Scenarios for Commercial, Domestic and Industrial Environments (D2a2-Intermediate)”"
  author:
  - name: "Bram van der Wal"
    link: "https://researchr.org/alias/bram-van-der-wal"
  - name: " M. Wilcox"
    link: "https://researchr.org/alias/m.-wilcox"
  - name: " O. Peña-González"
    link: "https://researchr.org/alias/o.-pe%C3%B1a-gonz%C3%A1lez"
  - name: " A. Alvárez-Vazquez"
    link: "https://researchr.org/alias/a.-alv%C3%A1rez-vazquez"
  - name: " I. Bucaille"
    link: "https://researchr.org/alias/i.-bucaille"
  - name: " S. Héthuin"
    link: "https://researchr.org/alias/s.-h%C3%A9thuin"
  - name: " A. Durantini"
    link: "https://researchr.org/alias/a.-durantini"
  - name: " X. Kechagias"
    link: "https://researchr.org/alias/x.-kechagias"
  - name: " Yong Kuan Loong"
    link: "https://researchr.org/alias/yong-kuan-loong"
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: " D. Porcino"
    link: "https://researchr.org/alias/d.-porcino"
  - name: " J.E. Vila-Aresté"
    link: "https://researchr.org/alias/j.e.-vila-arest%C3%A9"
  year: "2004"
  month: "Dec"
  doi: "http://www.ensta.fr/~roblin/doc_public/pulsers_d2a2.pdf"
  abstract: "This report is the final version of Deliverable D2a2 and it provides a selection of the most promising PULSERS scenarios. It maintains the original set of scenarios which have been used in the several work packages and technical activities within the PULSERS Integrated Project (WP3, WP4, WP5 and WP6), and additionally it presents a more detailed analysis of the selected scenarios with common sets of parameters. This document has been a uniform reference platform and reference point for the initial system designs and developments throughout the Phase I of PULSERS, and it will be taken into consideration as well during the PULSERS Phase II. Aspects such as general input parameters, expected system performance, ranges, throughput, power consumption, common terminology, for the definition of PULSERS scenarios, are approached. This document includes some tables that provide a comparison between the main parameters in the generic scenarios, and each particular scenario. Finally, a study of some coexisting radio systems is performed, including some key radio parameters, as sensitivity, frequency bands, PSD UWB limit…"
  links:
    doi: "http://www.ensta.fr/~roblin/doc_public/pulsers_d2a2.pdf"
  tags:
  - "power consumption"
  - "analysis"
  - "Meta-Environment"
  - "systematic-approach"
  researchr: "https://researchr.org/publication/UWB-Scenario"
  cites: 0
  citedby: 0
  type: "PULSERS Integrated Project, Contract No 506897,"
  kind: "techreport"
  key: "UWB-Scenario"
- title: "“Chip card, antenna support for a chip card and method for manufacturing an antenna support for a chip card”"
  author:
  - name: "Yeap Yean Wei"
    link: "https://researchr.org/profile/yeapyeanwei/publications"
  - name: " Ng Minli Cindy"
    link: "https://researchr.org/alias/ng-minli-cindy"
  - name: " Chin Wen Qiang"
    link: "https://researchr.org/alias/chin-wen-qiang"
  year: "2019"
  month: "Jan"
  researchr: "https://researchr.org/publication/WeiCindyQiang2019"
  cites: 0
  citedby: 0
  kind: "misc"
  key: "WeiCindyQiang2019"