SU1598187A1 - Frequency-conversion retranslator - Google Patents

Abstract

The invention relates to radio and can be used in radio relay lines. The purpose of the invention is to increase the transmission coefficient of the repeater. The retrastor contains the first and second receiving antennas 1 and 2, multiplexer 3, the first and second transmitting systems 4 and 5, the demultiplexer 6, the amplifier 7, the first and second circulators 8 and 9, the mixer 10, the shift generator 11, the cool and transmitting filters . An increase in the transmission coefficient of the transponder is achieved by passing the signal through the amplifier 7 twice from the receiving antenna 1 (2) to the corresponding transmitting system 4 (5). 2 Il.

Description

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This invention relates to radio and can be used in radio relay lines.

The purpose of the invention is a higher retransmission ratio.

Fig. 1 shows a repeater structural electrical circuit; FIG. 2 is a diagram of transmitting and receiving filters.

The repeater contains the first and second receiving antennas 1 and 2, receiving filters 3, first and second transmitting antennas 4 and 5, transmitting filters 6, amplifier 7, first and second power switches 8 and 9, mixer 10, generator 11, dielectric substrate 12 , microstrip lines 1 3 and 14.

Repeater works in the following way.

The signal received from the first receiving antenna 1 with a non-1, its frequency f / is fed to the first input of the receiving filter 3, from whose output through amplifier 7, the input of transmitting filter 6, the circulator 8 is fed to the input of the mixer Yus The mixer is made on diodes along the bridge A circuit providing reciprocity of conversion via two inputs, therefore the signal with frequency f. supplied to the first input is removed with the converted frequency from the second input of the mixer and through the circulator 9 is fed to the fourth input of the receiving filter 3, from which output an amplifier 7 for amplifying repeated on the converted frequency. From the output of the amplifier 7, the signal is fed to the input of the transmitters (their filters are bating the transmitting antenna 5. Similarly, the signal from the second receiving antenna 2 with carrier frequency f has the following path; receiving antenna 2 receiving filters 3, amplifier 7, transmitting filters 6, circulator 9, mixer 10, hvrklory tor 8, receiving filters 3, amplifier 7, transmitting filters 6, transmitting antenna 4. Receiving and transmitting filters 3 and 6 are made on miniature dielectric resonators. On the dielectric substrate 12 four channels are placed

filter. Each filter contains three resonators tuned to the appropriate frequency and electromagnetically coupled to each other. The extreme resonators are connected to the respective output segments of the microstrip transmission lines 13 and 14. When the receiving filters 3 arrive at the input of the signal with a frequency, for example, f, a resonator is excited. As a result, the signal with frequency f is output. The device is mutual, i. signals with different frequencies are combined at a common output.

Claims (1)

Invention Formula 0 five 0 five 0 A frequency conversion repeater containing the first and second receiving antennas, the amplifier, the mixer and the generator, the first and second circulators, the first and second receiving filters, and also the first and second, third and fourth transmitting filters, the first and second transmitting antennas, inputs which are connected to the outputs of the third and fourth transmission filters, respectively, the outputs of the first and second transmitting filters are connected to the inputs of the first and second circulators, respectively, the outputs of the first and second circulators are connected to responsibly with the inputs of the first and second receiving filters, the generator output is connected to the heterodyne input of the mixer, the first input-output of which is connected to the input-output of the first circulator, and the second input-output - with the input-output of the second circulator, that, in order to increase the transmission ratio of the retransmission, the third and fourth receiving 5 filters are introduced, the output of the first receiving antenna is connected to the input of the third receiving filter, the output of the second receiving antenna is connected to the input of the fourth receiving filter ode all reception filter connected to the input amplifier, whose output is connected to the inputs of all transmit filters. 0 Compiled by I. Korolev Editor S. Pekar Tehred M. Morgental Proofreader V. Girn ; Yak Order 3072 Circulation 531 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology 113035, Moscow, Zh-35, 4/5, Raushsk nab. Production and publishing; Combine Patent, Uzhgorod, st. Gagarin, 101 Subscription