Browsing katedra elektromagnetického pole by Issue Date
Now showing items 21-40 of 356
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Space Leakage of Power from the Slotline
(IEEE, 2001)In this paper we present the comprehensive dispersion characteristics of the slotline on thin and low permittivity substrate with a wide slotwidth comprising the bound and space leaky waves with even and odd electric field ... -
Active Resonator
(IEEE, 2001-07)A new electrical component-active resonator-is designed. The component consists of a common passive resonant circuit whose losses are compensated by an extra active circuit. Experimental verification was done with a TE/sub ... -
Stability of FDTD in Curvilinear Coordinates
(IEEE, 2001-07)A new approach suitable for determination of the maximal stable time step for the finite-difference time domain (FDTD) algorithm in curvilinear coordinates is presented. It is based on a modified variable separation method, ... -
Planar Slot-Patch Antenna
(IEEE, 2001-09)This paper discusses investigations of leaky wave radiation from the slotline made on a low permittivity substrate. New findings on the field distribution of the space leaky wave propagating on a slotline with a wide slot ... -
Novel Selected Modes on the Conductor - Backed Slotline
(IEEE, 2002)This paper presents a detailed full-wave analysis of the conductor-backed slotline. The occurrence of an even dominant mode is revealed. This mode may propagate alone from dc up to the frequency at which the first leaky ... -
Wide-Slotted Printed Slotline Radiator
(IEEE, 2002)This paper summarizes the investigation of radiation from the slotline made on a thin low permittivity substrate. The slot radiates the space leaky wave of the first order. The dispersion characteristic of this wave is ... -
Comments on Representation of Surface Leaky Waves on Uniplanar Transmission Lines
(IEEE, 2002-02)This paper compares partial waves approximating a surface leaky wave on a uniplanar transmission line with substrate surface waves supported by its substrate. It is shown that their field distributions and the propagation ... -
Even and Odd Modes on a Conductor-Backed Slotline
(IEEE, 2002-09) -
Modes on the Standard and Inverted Conductor-Backed Slotline
(IEEE, 2003-06)This paper recalls modes which can propagate on the conductor-backed slotline. The characteristic of the dominant mode on the CBSL is documented. The ICBSL is a modification of the CBSL placed in a dielectric with permittivity ... -
The Inverted Conductor-Backed Slotline - a Challenge to Antenna and Circuit Design
(IEEE, 2003-10)The characteristics of modes on the conductor-backed slotline, the inverted conductor-backed slotline and on its modification in which the top dielectric layer with higher permittivity has a finite thickness, are presented ... -
On radio interference filter measurement
(IEEE, 2003-12)A new measurement method for on site testing of multiport radio interference filters (RIF) on shielded chamber is designed. The method is based on scalar measurement only and makes possible a pessimistic estimate of the ... -
Wideband VIP power divider with differential output
(IEEE, 2003-12)A novel wideband VIP power divider with out of phase outputs was designed and experimentally verified. The phase difference 180° ±5° and the amplitude difference ± 0.8 dB of output signals were achieved in 4-26 GHz frequency ... -
Visualization of leaky waves on planar transmission lines
(IEEE, 2004-05)This paper presents a visualization of leaky waves excited by delta-gap sources on planar transmission lines, namely the 2nd surface and space leaky modes on the slotline, and the dominant and surface leaky modes on the ... -
Dispersion Characteristics of the Dominant Mode on a Completely Shielded Conductor-Backed Slotline
(IEEE, 2004-06)This paper presents an analysis of a completely shielded conductor-backed slotline using the spectral domain technique. Attention is paid to dominant and higher order modes with even symmetry of the transversal electric ... -
First results of microwave measurement of broadband radio interference filters
(IEEE, 2004-12)A vector measurement method for testing multiport interference filters for shielded chambers has been used. Measured data up to 3 GHz are presented. The authors believe that this is the first time such results have been published. -
A New Concept of PTP Vector Network Analyzer
(IEEE, 2004-12)A new concept for vector network analyzers design based on a perturbation two-port (PTP) is presented. The approach uses redundant states of the PTP. The best states of the PTP for a certain place in Smith chart and frequency ... -
Flat Waveguide with a Longitudinal Slot
(IEEE, 2005-06)This paper presents an analysis of a flat slotted waveguide by the spectral domain method finalized by a complex root search procedure. Matching of fields from bounded and unbounded regions at the common interface is ... -
Left-Handed Coplanar Waveguide
(IEEE, 2005-06)This paper proposes a new version of a left-handed coplanar waveguide. The line has a fully uniplanar structure without vias and lumped elements. The series capacitors are represented by interdigital capacitors and the ... -
Planar Transmission Lines in MW and MMW Circuits
(IEEE, 2005-09)The analysis of open, particularly slotted planar transmission lines in a wide frequency range is presented in this paper. The full wave approach by the spectral domain method is applied. Theoretical findings and their ... -
Coplanar Waveguide Transmitting a Left-Handed Wave
(IEEE, 2005-10)This paper presents a new version of a coplanar waveguide that transmits a left-handed wave. The equivalent circuit of the line unit cell has been derived from the shape of the layout. The values of its elements were ...