Results 181 to 190 of about 7,297 (221)
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Development of Coplanar Waveguide to Rectangular Waveguide Transition
2009 Annual IEEE India Conference, 2009This paper deals with a transition between CPW and rectangular waveguide suitable in phased array antenna environment. In case of phased array antenna where the scan angles are very large, the sub array size gets reduced. Hence in such cases the feed element size becomes very small and the accommodation of active module comprising phase shifter and ...
Shilpi Kumawat +2 more
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DoubleC-patch fed by coplanar waveguide
Microwave and Optical Technology Letters, 2000A miniaturized antenna, the coaxial probe‐fed double C‐patch, recently has been described. Owing to its numerous qualities such as low cost, easy realization, and a very small size (λ/11), a new structure fed by a coplanar waveguide (CPW) has been developed. A wider bandwidth, lower frequency than a double C‐patch, and a dual‐band or tri‐band character
Carrère, Jean-Marc +2 more
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Recent work on coplanar waveguide discontinuities and broadside-coupled coplanar waveguides
International Conference on Millimeter and Submillimeter Waves and Applications 1994, 1994This paper presents recent work on coplanar waveguide (CPW) step discontinuities and broadside-coupled CPW for microwave and millimeter-wave integrated circuits (MIC's and MMIC's) using the full-wave mode-matching and spectral- domain methods. Various numerical results are presented and discussed.
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Wideband coplanar waveguide fed coplanar patch antenna
IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229), 2001We have presented simulation and experimental results of wideband coplanar waveguide fed coplanar patch antennas. The antennas were developed to widen the narrow bandwidth of the newly suggested coplanar patch antennas. This was achieved by introducing two identical parasitic patches next to the resonant edges of the main patch.
K.F. Tong, K. Li, T. Matsui, M. Izutsu
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Ground coplanar waveguide to rectangular waveguide transition
2009 IEEE Antennas and Propagation Society International Symposium, 2009The ever-increasing interest towards microwave and millimeter-wave monolithic integrated circuits has led to employing coplanar waveguide (CPW) due to its many advantages such as compact size and capability to incorporate shunt and series elements without the need to process backside and integrate via holes.
M. Vahidpour, K. Sarabandi
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IEEE Transactions on Microwave Theory and Techniques, 1982
Conductor losses in coplanar waveguides have been calculated using a quasi-static Green's function approach. These calculations and others on dielectric and radiation losses are used to compute the quality factor of half-wavelength resonators, and comparison with measurements show good agreement.
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Conductor losses in coplanar waveguides have been calculated using a quasi-static Green's function approach. These calculations and others on dielectric and radiation losses are used to compute the quality factor of half-wavelength resonators, and comparison with measurements show good agreement.
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Various Excitation of Coplanar Waveguide
MTT-S International Microwave Symposium Digest, 2005This paper reviews various methods to excitate propagation along coplanar waveguide (C.P.W); some very useful transitions are completly described and the performances obtained on transitions such as coplanar to coax, coplanar to microstrip or coplanar to slot line are given.
M. Houdart, C. Aury
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Numerical synthesis of coplanar waveguides
Microwave and Optical Technology Letters, 2020AbstractThis letter shows that the synthesis of coplanar waveguides with finite substrate thickness can be obtained by simple numerical solution from the exact quasi‐static formulae of the characteristic impedance using bisection method The novelty of the method is that accurate synthesized values compared to those from curve fitted formulae are ...
Manas Kumar Haldar +2 more
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A Coplanar Waveguide Antenna for MMICs
18th European Microwave Conference, 1988, 1988The coplanar patch antenna is a recent addition to the range of planar radiators. This paper presents some results for this type of antenna. It has good front to back ratio (15 dB) and low cross polarisation (-20 dB) performances and these have been achieved by exploiting the lens like effects of the high dielectric constant substrate.
D. H. Evans, P. J. Gibson
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Attenuation characteristics of coplanar waveguides
ICMWFST'96. 1996 4th International Conference on Millimeter Wave and Far Infrared Science and Technology. Proceedings, 2002The behaviour of attenuation losses in CPWs is studied for quasi planar transmission lines with constant characteristic impedance (Zo) and resistivity, having different geometries. Minimisation of loss for a chosen substrate thickness, conductivity and Zo is analysed.
A.K. Rastogi, A.K. Tiwari
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