Abstract: A method for operating a measuring device, in particular, a vectorial network analyzer, which can be connected via at least two ports to a device under test, with excitation units assigned to each port, wherein each excitation unit provides a signal generator, with which the assigned port can be supplied with an excitation signal, provides the following procedural stages: a measurement at measuring positions of the actual phase offset between the excitation signals output at the ports; and a variation of the frequency of at least one of the two signal generators during a correction interval so that a specified set phase offset is achieved at reference positions between the excitation signals output at the ports.

Abstract: A method and a device for increasing the dynamic range and measuring accuracy of a measuring device for spectrum and/or network analysis images a high-frequency electronic signal within a frequency range into at least two spectra through a first frequency translation by means of a mixer of the measuring device. As a result of the first frequency translation, the spectrum of the high-frequency electronic signal is successively imaged within the resolution bandwidth (?FZF) of an intermediate frequency filter of the measuring device. At the same time, through a second frequency translation, every spectral line of interference signals generated in the measuring device comes to be disposed outside the resolution bandwidth (?FZF) of the intermediate frequency filter.

Abstract: A measuring device (e.g., a vectorial network analyzer) by means of at least two ports can be connected to a device under test and has associated excitation/receiving units (ERUs), each thereof having one port. At least one ERU has a signal generator, which can apply an excitation signal onto a device under test. Each ERU possesses two receiving apparatuses (each with a mixer in connection with an oscillator signal) to receive the excitation signal, the reflected signal from the associated port or the signal transmitted to the associated port and converts said signal into an intermediate signal. Each ERU exhibits its own oscillator separate from the signal generator, and generates the oscillator signal for the mixer of the receiving apparatus of the ERU, whereby the frequency and/or phase of the oscillator signals, can be adjusted independently of the frequency and/or phase of oscillator signals of the oscillators of other ERUs.

Abstract: A method and a device for increasing the dynamic range and measuring accuracy of a measuring device for spectrum and/or network analysis images a high-frequency electronic signal within a frequency range into at least two spectra through a first frequency translation by means of a mixer of the measuring device. As a result of the first frequency translation, the spectrum of the high-frequency electronic signal is successively imaged within the resolution bandwidth (?FZF) of an intermediate frequency filter of the measuring device. At the same time, through a second frequency translation, every spectral line of interference signals generated in the measuring device comes to be disposed outside the resolution bandwidth (?FZF) of the intermediate frequency filter.

Abstract: Hybrid tea rose plant for cut flower production having high production of flowers—(240-260 flowers per m2/year) of long lasting flowers (15-18 days).

Abstract: An electronic microwave circuit (1) with field effect transistors which are integrated on at least one semiconductor chip (2), has a light source (3), which radiates the field effect transistors with light and possesses a housing (6) which encloses in a microwave excluding manner the semiconductor chip (2) and the light source (3) or a light conducting means (8) connected with the light source (3).

Abstract: Electronic switch (1) with two switching states (ON, OFF) possesses at least one field effect switching transistor (Q1), input port (In) connected with source terminal (S), on which input signal (Vin) is present, output port (Out) connected with drain terminal, on which switched signal (Vout) is present, control port (Con) connected to gate terminal (G), on which is present signal (Vc) for controlling electronic switch (1) and switch apparatus (Sw), which creates the two switching states (ON, OFF) by means of a changing of control signal (Vc). Controlling signal (Vc), during at least one of the two switching states (ON, OFF) is, at least partially, formed by correction signal (Sc), which in turn is produced from input signal (Vin), so that the frequency dependent drop in voltage between the drain-source channel and the gate electrode of the field effect switching transistor (Q1) is at least partially compensated.

Abstract: Electronic switch (1) with two switching states (ON, OFF) possesses at least one field effect switching transistor (Q1), input port (In) connected with source terminal (S), on which input signal (Vin) is present, output port (Out) connected with drain terminal, on which switched signal (Vout) is present, control port (Con) connected to gate terminal (G), on which is present signal (Vc) for controlling electronic switch (1) and switch apparatus (Sw), which creates the two switching states (ON, OFF) by means of a changing of control signal (Vc). Controlling signal (Vc), during at least one of the two switching states (ON, OFF) is, at least partially, formed by correction signal (Sc), which in turn is produced from input signal (Vin), so that the frequency dependent drop in voltage between the drain-source channel and the gate electrode of the field effect switching transistor (Q1) is at least partially compensated.

Abstract: A measuring device (e.g., a vectorial network analyser) by means of at least two ports can be connected to a device under test and has associated excitation/receiving units (ERUs), each thereof having one port. At least one ERU has a signal generator, which can apply an excitation signal onto a device under test. Each ERU possesses two receiving apparatuses (each with a mixer in connection with an oscillator signal) to receive the excitation signal, the reflected signal from the associated port or the signal transmitted to the associated port and converts said signal into an intermediate signal. Each ERU exhibits its own oscillator separate from the signal generator, and generates the oscillator signal for the mixer of the receiving apparatus of the ERU, whereby the frequency and/or phase of the oscillator signals, can be adjusted independently of the frequency and/or phase of oscillator signals of the oscillators of other ERUs.

Abstract: An electronic nicrowave circuit (1) with field effect transistors which are integrated on at least one semiconductor chip (2), has a light source (3), which radiates the field effect transistors with light and possesses a housing (6) which encloses in a microwave excluding manner the said semiconductor chip (2) and the light source (3) or a light conducting means (8) connected with the light source (3).

Abstract: In a vectorial network analyzer having at least two measuring ports, whose measuring arms respectively have quad gates with the accompanying measuring points, a separate high-frequency generator is associated to each measuring port; with high-frequency signals of these generators being distinguishable from each other and being simultaneously fed to their respective measuring ports.

Abstract: For measuring electronic devices under test with a network analyzer, the electronic devices to be embedded into a linear auxiliary network during their operation, as well as, during the measurement. First, system error correction data is determined for the network analyzer according to a known calibration method by connecting calibration standards. Then, the characteristic data for the auxiliary network to be used is determined and is linked with the system error correction data to form new error correction simulation data. Finally, in the subsequent measurement of devices under test connected to the network analyzer, this error correction simulation data is appropriately considered with the algorithm for system error correction that is present in the network analyzer, so that an auxiliary network virtually connected to the device under test is simulated.

Abstract: A method for recognizing previously localized characters present in digital gray tone images, particularly for recognizing characters struck in metal surfaces, whereby, for training a trainable character recognition routine, steps are provided to generate reference characters presented line-like and to deposit these reference characters in a working memory of the trainable character recognition routine, whereby the number and nature of the reference characters correspond to the character set from which characters are to be recognized.

Abstract: Hybrid tea rose plant for cut flower production having high production of flowers—(240-260 flowers per m2/year) of long lasting flowers (15-18 days).

Abstract: Hybrid tea rose plant substantially as herein shown and described, characterized particularly by its red and silvery-white flowers and its good bud-to-stem ratio.

Abstract: Groundcover rose plant having resistance to black spot, resistance to powdery mildew and prolific pink-red blooms.