Pub Date : 2006-05-22DOI: 10.1109/MIKON.2006.4345160
T. Stefański, B. Janiczak
The experimental method of propagation coefficient and characteristic impedance estimation of fundamental guided modes in coupled coplanar waveguide (C-CPW) is presented in the paper. The method employs feeding transitions which allow to excite desired mode and measure parameters of transmission line with use of standard two-port vector network analyzer (VNA). Characteristic impedance is determined from easily measured propagation coefficient and static capacitance per unit length estimated from time-domain reflectometry (TDR) measurement. The results were checked against numerical data computed with use of the Spectral Domain Approach. Satisfactory degree of convergence between measured and numerical data has been achieved proving usefulness of worked out technique.
{"title":"Experimental Frequency-Domain Characterization of Fundamental Guided Mode Parameters in Coupled Coplanar Waveguide","authors":"T. Stefański, B. Janiczak","doi":"10.1109/MIKON.2006.4345160","DOIUrl":"https://doi.org/10.1109/MIKON.2006.4345160","url":null,"abstract":"The experimental method of propagation coefficient and characteristic impedance estimation of fundamental guided modes in coupled coplanar waveguide (C-CPW) is presented in the paper. The method employs feeding transitions which allow to excite desired mode and measure parameters of transmission line with use of standard two-port vector network analyzer (VNA). Characteristic impedance is determined from easily measured propagation coefficient and static capacitance per unit length estimated from time-domain reflectometry (TDR) measurement. The results were checked against numerical data computed with use of the Spectral Domain Approach. Satisfactory degree of convergence between measured and numerical data has been achieved proving usefulness of worked out technique.","PeriodicalId":315003,"journal":{"name":"2006 International Conference on Microwaves, Radar & Wireless Communications","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131763178","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}
Pub Date : 2006-05-22DOI: 10.1109/MIKON.2006.4345100
W. Wiatr, A. Lewandowski
We present a statistical technique for one-port vector network analyzer (VNA) calibration based on multiple reflect and a single reference standards. The multiple reflect standards are assumed to be partly unknown and of the same type, e.g. offset terminations. Their reflection coefficients are modeled over frequency and identified during the calibration along with the VNA error terms. This novel technique is particularly useful for millimeter-wave VNA calibrations in which conventional transmission line standards and the TRL method become impractical. Experimental verification shows that the accuracy of our technique is very high and comparable with the one-port measurement accuracy of the multiline TRL method.
{"title":"Multiple Reflect Technique for Wideband One-Port VNA Calibration","authors":"W. Wiatr, A. Lewandowski","doi":"10.1109/MIKON.2006.4345100","DOIUrl":"https://doi.org/10.1109/MIKON.2006.4345100","url":null,"abstract":"We present a statistical technique for one-port vector network analyzer (VNA) calibration based on multiple reflect and a single reference standards. The multiple reflect standards are assumed to be partly unknown and of the same type, e.g. offset terminations. Their reflection coefficients are modeled over frequency and identified during the calibration along with the VNA error terms. This novel technique is particularly useful for millimeter-wave VNA calibrations in which conventional transmission line standards and the TRL method become impractical. Experimental verification shows that the accuracy of our technique is very high and comparable with the one-port measurement accuracy of the multiline TRL method.","PeriodicalId":315003,"journal":{"name":"2006 International Conference on Microwaves, Radar & Wireless Communications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123852187","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}
Pub Date : 2006-05-22DOI: 10.1109/MIKON.2006.4345206
M. Garbaruk
The time and frequency analysis of ultra-wideband (UWB) signals for radiocommunication systems is presented in the paper. The results of computation are shown. A process of synthesis of the ultra-wideband signals from the spectrum for different parameters is analyzed. The influence of limitations of signals' spectrums over the shape of rebuilt pulses is discussed. Distortions of popular Gaussian and Rayleigh pulses in UWB band 3.1-10.6 GHz are shown.
{"title":"Time-Frequency Characteristics of Ultra-Wideband Signals for Radio Systems","authors":"M. Garbaruk","doi":"10.1109/MIKON.2006.4345206","DOIUrl":"https://doi.org/10.1109/MIKON.2006.4345206","url":null,"abstract":"The time and frequency analysis of ultra-wideband (UWB) signals for radiocommunication systems is presented in the paper. The results of computation are shown. A process of synthesis of the ultra-wideband signals from the spectrum for different parameters is analyzed. The influence of limitations of signals' spectrums over the shape of rebuilt pulses is discussed. Distortions of popular Gaussian and Rayleigh pulses in UWB band 3.1-10.6 GHz are shown.","PeriodicalId":315003,"journal":{"name":"2006 International Conference on Microwaves, Radar & Wireless Communications","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121228879","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}
Pub Date : 2006-05-22DOI: 10.1109/MIKON.2006.4345127
G. McFeetors, M. Okoniewski
An RF MEMS capacitor design, fabrication and measurement is described. The capacitor's dual gap height architecture allows for continuous electrostatic tuning with low resistive loss and a large tuning range. Two voltage sources are used to reach the full tuning potential of the device. Measurements indicate a capacitance tuning range of 6.2:1 with a quality factor over 50 at 30 GHz for 310 fF.
{"title":"Custom Fabricated High-Q Analog Dual-Gap RF MEMS Varactors","authors":"G. McFeetors, M. Okoniewski","doi":"10.1109/MIKON.2006.4345127","DOIUrl":"https://doi.org/10.1109/MIKON.2006.4345127","url":null,"abstract":"An RF MEMS capacitor design, fabrication and measurement is described. The capacitor's dual gap height architecture allows for continuous electrostatic tuning with low resistive loss and a large tuning range. Two voltage sources are used to reach the full tuning potential of the device. Measurements indicate a capacitance tuning range of 6.2:1 with a quality factor over 50 at 30 GHz for 310 fF.","PeriodicalId":315003,"journal":{"name":"2006 International Conference on Microwaves, Radar & Wireless Communications","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116030914","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}
Pub Date : 2006-05-22DOI: 10.1109/MIKON.2006.4345140
A. Totsky, I. V. Kurbatov, G. Khlopov, S. Khomenko, V. Morozov
A new approach to time-frequency analysis of radar echo responses obtained from moving objects is represented. The suggested approach is based on the extraction of phase-coupled harmonics from time-varying bispectrum estimates of transient sequences separated from the total radar backscattered signal by a sliding window. A coherent, homodyne, and continuous-wave radar has been employed for measuring multi-component, non-stationary, and nonlinear frequency modulated signals backscattered by moving objects. The experimental study underpinned with the theoretical assumptions of the suggested approach has demonstrated clean recovery of time-varying phase-coupled frequencies for test targets like a swinging metallic sphere or a walking human. The obtained time-frequency distributions of phase-coupled harmonics can be recommended as a new information feature in automatic radar target recognition systems.
{"title":"Time-Frequency Analysis of Radar Backscattered Signals using Phase Coupled Frequencies Extracted from Time-Varying Bispectrum Estimates","authors":"A. Totsky, I. V. Kurbatov, G. Khlopov, S. Khomenko, V. Morozov","doi":"10.1109/MIKON.2006.4345140","DOIUrl":"https://doi.org/10.1109/MIKON.2006.4345140","url":null,"abstract":"A new approach to time-frequency analysis of radar echo responses obtained from moving objects is represented. The suggested approach is based on the extraction of phase-coupled harmonics from time-varying bispectrum estimates of transient sequences separated from the total radar backscattered signal by a sliding window. A coherent, homodyne, and continuous-wave radar has been employed for measuring multi-component, non-stationary, and nonlinear frequency modulated signals backscattered by moving objects. The experimental study underpinned with the theoretical assumptions of the suggested approach has demonstrated clean recovery of time-varying phase-coupled frequencies for test targets like a swinging metallic sphere or a walking human. The obtained time-frequency distributions of phase-coupled harmonics can be recommended as a new information feature in automatic radar target recognition systems.","PeriodicalId":315003,"journal":{"name":"2006 International Conference on Microwaves, Radar & Wireless Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116113050","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}
Pub Date : 2006-05-22DOI: 10.1109/MIKON.2006.4345384
K. Czuba, H. Weddig, B. Lorbeer, S. Simrock, E. Salow, N. Fend
The VUV-FEL [1] is a free electron laser facility being commissioned at DESY [2] Hamburg. It includes seven RF stations distributed over a distance of 300 meters. Multiple RF devices at each station operating at frequencies in the range of 1 MHz to 2.8 GHz must be synchronized with sub picosecond accuracy. To fulfil the short and long term synchronization requirements a phase reference distribution system has been developed. It consists of a master oscillator (MO), signal distribution system and a fiber-optic phase monitoring link [3]. This paper describes the most important design issues of the MO. Phase noise and phase drift are addressed and the appropriate solutions used for minimizing those sources of errors are presented. Current status of the MO is described with measurement confirming the required performance.
{"title":"Master Oscillator Design for the VUV-FEL Project","authors":"K. Czuba, H. Weddig, B. Lorbeer, S. Simrock, E. Salow, N. Fend","doi":"10.1109/MIKON.2006.4345384","DOIUrl":"https://doi.org/10.1109/MIKON.2006.4345384","url":null,"abstract":"The VUV-FEL [1] is a free electron laser facility being commissioned at DESY [2] Hamburg. It includes seven RF stations distributed over a distance of 300 meters. Multiple RF devices at each station operating at frequencies in the range of 1 MHz to 2.8 GHz must be synchronized with sub picosecond accuracy. To fulfil the short and long term synchronization requirements a phase reference distribution system has been developed. It consists of a master oscillator (MO), signal distribution system and a fiber-optic phase monitoring link [3]. This paper describes the most important design issues of the MO. Phase noise and phase drift are addressed and the appropriate solutions used for minimizing those sources of errors are presented. Current status of the MO is described with measurement confirming the required performance.","PeriodicalId":315003,"journal":{"name":"2006 International Conference on Microwaves, Radar & Wireless Communications","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114337296","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}
Pub Date : 2006-05-22DOI: 10.1109/MIKON.2006.4345269
A. Rutkowski
This article concerns application of instantaneous frequency measurement IFM receiver for monitoring of telecommunication signals. The investigations were performed with the aid of two microwave frequency discriminators MFD built in microstrip technique. The experimental kit enabled to measure of parameters of the mobile phones' and GSM base station's signals. Such information is very useful, for instance, for quick control of operation correctness of telecommunication and other microwave devices.
{"title":"Analysing of GSM Signals by Means of IFM Receiver","authors":"A. Rutkowski","doi":"10.1109/MIKON.2006.4345269","DOIUrl":"https://doi.org/10.1109/MIKON.2006.4345269","url":null,"abstract":"This article concerns application of instantaneous frequency measurement IFM receiver for monitoring of telecommunication signals. The investigations were performed with the aid of two microwave frequency discriminators MFD built in microstrip technique. The experimental kit enabled to measure of parameters of the mobile phones' and GSM base station's signals. Such information is very useful, for instance, for quick control of operation correctness of telecommunication and other microwave devices.","PeriodicalId":315003,"journal":{"name":"2006 International Conference on Microwaves, Radar & Wireless Communications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115329372","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}
Pub Date : 2006-05-22DOI: 10.1109/MIKON.2006.4345398
S. Plata
This paper presents some design problems and aspects of building FMCW radar transmitter based on DDS. Significant parameters of this radar are small targets detection possibility, small resolution cell and high range resolution. It requires resolving a problem of generation microwave signals with excellent linear frequency modulation and very good phase noise performance. One of possible solution is DDS (direct digital synthesis) technology, which is rapidly advancing.
{"title":"FMCW Radar Transmitter Based on DDS Synthesis","authors":"S. Plata","doi":"10.1109/MIKON.2006.4345398","DOIUrl":"https://doi.org/10.1109/MIKON.2006.4345398","url":null,"abstract":"This paper presents some design problems and aspects of building FMCW radar transmitter based on DDS. Significant parameters of this radar are small targets detection possibility, small resolution cell and high range resolution. It requires resolving a problem of generation microwave signals with excellent linear frequency modulation and very good phase noise performance. One of possible solution is DDS (direct digital synthesis) technology, which is rapidly advancing.","PeriodicalId":315003,"journal":{"name":"2006 International Conference on Microwaves, Radar & Wireless Communications","volume":"174 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125313852","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}
Pub Date : 2006-05-22DOI: 10.1109/MIKON.2006.4345393
W. Bartynowski, W. Zieniutycz, M. Mazur
In this paper dielectric filling is presented as a simple way of adapting ridged horn antenna for ground penetrating radar (GPR). The requirements for GPR antenna were described to justify the choice of dielectric ridged horn as a simple handheld device aimed to landmines finding. An attempt of detection of the buried metal plate is also shown.
{"title":"Ridged Horn Antenna for Ground Penetrating Radar","authors":"W. Bartynowski, W. Zieniutycz, M. Mazur","doi":"10.1109/MIKON.2006.4345393","DOIUrl":"https://doi.org/10.1109/MIKON.2006.4345393","url":null,"abstract":"In this paper dielectric filling is presented as a simple way of adapting ridged horn antenna for ground penetrating radar (GPR). The requirements for GPR antenna were described to justify the choice of dielectric ridged horn as a simple handheld device aimed to landmines finding. An attempt of detection of the buried metal plate is also shown.","PeriodicalId":315003,"journal":{"name":"2006 International Conference on Microwaves, Radar & Wireless Communications","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125719484","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}
Pub Date : 2006-05-22DOI: 10.1109/MIKON.2006.4345367
Z. Nosal
This paper presents detailed circuit description and test results for the simple low-IF image rejection receiver. The receiver is tunable over 1340 - 1500 MHz (typ.) frequency range and provides about 40 dB of image rejection without adjustments. The circuit was manufactured in a 0.8 μm CMOS technology from Austria Microsystems.
{"title":"Low IF l-band image rejection receiver in 0.8 μm CMOS technology","authors":"Z. Nosal","doi":"10.1109/MIKON.2006.4345367","DOIUrl":"https://doi.org/10.1109/MIKON.2006.4345367","url":null,"abstract":"This paper presents detailed circuit description and test results for the simple low-IF image rejection receiver. The receiver is tunable over 1340 - 1500 MHz (typ.) frequency range and provides about 40 dB of image rejection without adjustments. The circuit was manufactured in a 0.8 μm CMOS technology from Austria Microsystems.","PeriodicalId":315003,"journal":{"name":"2006 International Conference on Microwaves, Radar & Wireless Communications","volume":"51 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126069921","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}
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