SU1603455A1 - Phase corrector - Google Patents

Abstract

The invention relates to microwave technology and can be used in devices with phase correction. The purpose of the invention is to increase the steepness of the phase-frequency characteristic (phase response). The phase corrector contains a dielectric substrate 1, on one side of which is located the grounding base 2, and on the other side conductor 3 and connected to it through a capacitor 7 is open at the end of the cable (Ø) 6. At the grounding base 2 there is a half-wave gap (Y) 9, located under W 6 and short-circuited at the ends. The length of Ø 6 is more than a quarter and less than half of the wavelength at an average frequency, and its end 8 coincides with the short-circuited end of 10 u 9. The larger the length of Ø 6, the steeper the phase response. The matching is achieved by selecting the wave impedances W 6 and W 9, and the resonant frequency is set by the capacitor 7. 1 sludge.

Description

ABOUT

about with

01

The invention relates to a microwave technique and can be used in frequency selective phase correction circuits.

The aim of the invention is to increase the phase response frequency (slope) slope.

The drawing shows the design of the phase corrector.

The phase corrector contains a dielectric substrate 1, on one side of which there is a grounding base;, 2, and on the other side - conductor 3, ends 4 and 5: which are input and output, respectively, and a loop 6 connected to conductor 3 by one the end through the capacitor 7 and open at the other end 8. In the grounding base 2 there is a half-wave slit 9, short-circuited at the ends and: placed along the train 6. Projection of one short-circuited end 10 half-wave-; A new slot and another edge 8 of the cable 6 lie in the same plane perpendicular to the dielectric substrate 1. The length I of the cable 6 is chosen within Java / 4 I AV / 2, where Yae is the wavelength taking into account the dielectric filling.

Phase corrector works as follows

The microwave signal applied to the input is transmitted to the output and undergoes a phase shift change in the vicinity of the average wavelength. The longer the length of the loop 6, the weaker the connection between the loop (on loop 6) and slotted (half-wave gap 9) resonators with conductor 3 and the steeper the phase response.

The capacitance C of the capacitor 7 is selected from the resonance condition at the wavelength I:

A2l

2n C2sh V

WITH -

where C is the speed of light;

Zsh is the wave impedance of the microstrip line section, formed by dielectric substrate 1, cable b and grounding base 2. Wavelength conductivity of the Slot Zm. And Zm are chosen according to the matching condition in the operating frequency range:

five

10 15 20 25

0 5

0

Y, M

one

(

2Z,

Zo

).

five

2Zo Zo, 2Zui where Zo is the characteristic impedance at the ends 4 and 5.

At the resonant wavelength I, the microwave signal passing through the conductor 3 is broken by a slot resonator at the half-wave gap 9, the microwave signal passes through the loop resonator on the loop 6 and the capacitor 7 and acquires a phase shift equal to. compared to the wavelengths lying above and below this / u1iny wave.

Thus, a phase change of 2 l can be made in a narrow frequency band (on the order of 5% of the average frequency) while maintaining the input and output matching in a wide range of operating frequencies,

Formula and 3 about the line and Phase corrector, containing a dielectric substrate, on one side of which is placed a metallized base, and on the other side is a conductor, the ends of which are the input and output, respectively, and a loop connected to the conductor by one, end 1/1 open at the other end. and in the metallized base there is a half-wave slit, short-circuited at the ends and stirring enne along the train, and the projections of one short-circuited end of the half-wavelength slit and the other end of the train lie in one plane, perpendicular to the dielectric pad, which is In order to increase the steepness of the phase-frequency characteristic, the cable is connected to the conductor via an injected capacitor and the cable length I is selected within Я / 4 I I «/ 2, where is the average wavelength taking into account the dielectric filling.

Claims (1)

Claim 25 Phase corrector containing a dielectric substrate, on one side of which there is a metallized base. and on the other is a conductor, the ends of which are the input and 30 output, respectively, and a loop connected to the conductor by one end and open at the other end, and in the metallized base there is a half-wave gap short-circuited to 35 ends and placed along the loop, and the projections of one short-circuited end of the half-wave gap and the other end of the loop lie in the same plane perpendicular to the dielectric substrate, about 40 in that, in order to increase the steepness of the phase-frequency characteristic, the loop is connected to the conductor through an inserted capacitor and the length I of the loop is selected within 45 Λθ / 4 <I <A «/ 2, where Ae is the average wavelength taking into account the dielectric filling.