SU1239870A1 - Duplex balanced mixer - Google Patents

Abstract

The invention is from a microwave to radio engineering. The band is widened by the signal of intermediate frequency and the structure is simplified. The voltage of the signal is fed to the 1st segment of the 4 micro-lines (ML), divided in half using a tape tee 6 between the 1st diagonal of the diode assemblies (DS) 8 and 9. The voltage of the local oscillator is supplied to the 2nd segment of the 7ML , excites a segment of the slot line 2, through the segment of the planar two-wire line 3 is applied to the other ends of the second diagonals of DC 8 and 9. One ends of their second diagonals are interconnected and are always under a zero potential with respect to the signal and heterodyne inputs. The design of the mixer has a hole in the dielectric substrate (BF) 1, in which an additional BF is installed, with AC 8 and 9, respectively, placed on its sides. 1 Cp f-ly, 3 ill. c (O (L

Description

FIELD: radio engineering of СБЧ and can be used in radio receiving, radio transmitting and radio measuring equipment.

The goal of the ibrereni is to expand the band by the intermediate frequency signal and simplify the design.

Figure 1 shows the design of a double balanced mixer; figure 2 is a variant of the design of a double balanced mixer with a hole in the dielectric substrate; in FIG. 3, an additional dielectric substrate with diode assemblies.

Double balanced mixer (Fig. 1) (s frequencies are arbitrary, since they all contain a dielectric substrate 1,. The first balancing transformer, made in the form of a transition from a slit line 2 segment to a planar two-wire line 3, Vtor.Oh

balancing transformer, made in the form of a smooth transition from the first segment 4 of the microstrip line to the segment of the ribbon line 5,

tape tee 6, third symmetric 25 electrical substrate 12 with dimensions

ruddy transformer, completed

as a transition from the second section 7 of the microstrip line to the section of the slotted line 2, the first and second diode assemblies 8 and 9, the diodes of which are connected by bridges, the end of the first section 4 of the microstrip line is a signal input, the end of the second section 7 of the microstrip line is the heterodyne input, and the output of the intermediate frequency signal is a common connection point of the first and second diode assemblies 8 and 9 structurally designed as a pad 10.

The design of the balanced microwave mixer (FIG. 2) has an opening 11 in the dielectric substrate 1, in which the dielectric substrate TS (FIG. 3) is additionally installed with the first and second diode assemblies 8 and, respectively, placed on its sides. 9.,

Double balanced microwave mixer works as follows.

The voltage of the signal goes to the first section 4 of the microstrip line and is further divided in half with the help of a new tape tee 6 between the first diagonals of the first and second diode assemblies 8 and 9. The voltage of the local oscillator goes to the second section 7 of the microstrip line, excites

the slit line segment .2 and then through the planar two-wire line segment 3 is applied to the other ends of the second diagonals of the first and second diode assemblies 8 and 9, since one ends of their second diagonals are interconnected, and their connections are always at a zero potential with respect to to signal and heterodyne inputs. Thus, all three inputs of the proposed balanced mixer are mutually distributed and their division into the signal input, the heterodyne input and the output signal of the intermediate

Immobable.

The double balanced mixer (Fig. 2) works in a similar manner, but using the first and second diode assemblies 8 and 9 in the integrated design provides a higher degree of balance, since minimal parasitic impedances are realized when switching on an additional diesel.

about 1x1x0,5 mm.

Claims (2)

1. Double balanced mixer containing a dielectric substrate with a first symmetric transformer and a second balun transformer placed on it, which is made as a smooth transition from the first segment of the microstrip line to the ribbon line segment, the ribbon tee, the input arm of which is connected to the end of the segment tape line, the first and second diode assembly, made identical to the four diodes, while the end of the first segment of the microstrip line is a signal input that distinguishes By the fact that, in order to expand the band by the intermediate frequency signal and simplify the design, the first balancing transformer is made as a transition from a slit line segment to a planar two-wire line segment. The diodes in the first and second diode assemblies are connected via bridge circuits, the first diagonals of which are connected to the corresponding output shoulders of the flax of the exact tee, their second diagonals are connected by one ends and the point of their connection is the output of c1: napa of intermediate frequency, and the other ends of These points are located at the ends of the planar two-wire line segment, while the heterodyne input is the microstrip input of the additionally introduced third balancing transformer, made in the form of a transition from the second section of the microstrip line to the cutting of the slot line. 2. The mixer according to claim 1, characterized in that the dielectric substrate has an opening-hole in which an additional dielectric substrate is placed, on the sides of which the first and second diode assemblies are installed, respectively. Fig.Z Editor A. Sabo Compiled by Y. Danich Tehred L.Oleynik Proofreader V.But ha Order 3410/57 Circulation 624 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-45, Raushsk nab. 4/5 Production and printing company, Uzhgorod, Projecto st., 4.