Frequency expansion device for millimeter wave comprehensive measurement analyzer

Abstract

The utility model discloses frequency expansion equipment for a millimeter wave comprehensive measurement analyzer. The frequency expansion equipment comprises a spread spectrum port I and a spread spectrum port II, the input end of the spread spectrum port I is connected with the output end of the attenuator IV, the input end of the attenuator IV is connected with the output end of the frequency multiplier I, and the input end of the frequency multiplier I is connected with one output end of the power divider; the output end of the second spread spectrum port is connected with the input end of a fifth attenuator, the output end of the fifth attenuator is connected with an RF port of a frequency mixer, an LO port of the frequency mixer is connected with the output end of a second frequency multiplier, and the input end of the second frequency multiplier is connected with the other output end of the power divider; the input end of the power divider is connected with the output end of the amplifier I, and the input end of the amplifier is connected with the output end of the attenuator I; an IF port of the frequency mixer is connected with an input end of the third attenuator, an output end of the third attenuator is connected with an input end of the second amplifier, and an output end of the second amplifier is connected with an input end of the second attenuator. An additional clock does not need to be provided, after a spread spectrum device is introduced, a host does not need to be changed, measurement can be carried out by using an algorithm of the host, the structure is simple, and the cost is low. And the manufacturing cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing equipment, in particular to a frequency extension device used for a millimeter wave comprehensive measurement analyzer. Background Art

[0002] In the field of RF measurement, the frequency range of conventional instruments is below 50GHz, such as the Chinese patent document "CN203054215U, 35GHZ measurement radar millimeter wave component". If you need to measure above 50GHz, you need to purchase expensive frequency extension components. In addition, many conventional instruments do not support frequency extension. If you want to test higher frequencies, you need to purchase a host that can support frequency extension. In this way, the budget for measuring instruments will increase significantly, greatly increasing costs. Utility Model Content

[0003] The purpose of the utility model is to provide a frequency extension device for a millimeter wave comprehensive measurement analyzer to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A frequency extension device for a millimeter wave comprehensive measurement analyzer, comprising a first spread spectrum port and a second spread spectrum port;

[0006] The input end of the spread spectrum port 1 is connected to the output end of the attenuator 4, the input end of the attenuator 4 is connected to the output end of the frequency multiplier 1, the input end of the frequency multiplier 1 is connected to one of the output ends of the power divider, and the frequency multiplier 1 can amplify the frequency by N times;

[0007] The output end of the spread spectrum port 2 is connected to the input end of the attenuator 5, the output end of the attenuator 5 is connected to the RF port of the mixer, the LO port of the mixer is connected to the output end of the frequency multiplier 2, the input end of the frequency multiplier 2 is connected to the other output end of the power divider, and the frequency multiplier 2 can amplify the frequency by N-1 times; the input end of the power divider is connected to the output end of the amplifier 1, and the input end of the amplifier is connected to the output end of the attenuator 1;

[0008] The IF port of the mixer is connected to the input end of attenuator three, the output end of attenuator three is connected to the input end of amplifier two, and the output end of amplifier two is connected to the input end of attenuator two.

[0009] Beneficial effects of the utility model:

[0010] The frequency extension device described in the utility model mainly includes an amplifier, a frequency multiplier, a mixer, and an attenuator. The frequency extension device does not need to provide an additional clock. After the frequency extension device is introduced, there is no need to change the host. The host's own algorithm can be used for measurement. The structure is simple and the production cost is low.

[0011] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 : Schematic diagram of the logical connection of components of the utility model.

[0013] Figure numerals: 1-spread spectrum port 1, 2-spread spectrum port 2, 31-attenuator 4, 32-attenuator 5, 33-attenuator 1, 34-attenuator 3, 35-attenuator 2, 41-frequency multiplier 1, 42-frequency multiplier 2, 5-power divider, 6-mixer, 71-amplifier 1, 72-amplifier 2. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] Please refer to Figure 1 ;

[0016] The frequency extension device described in the utility model can realize frequency extension for both signal sources and vector network analyzers, thereby increasing the application scope of the frequency extension device; specifically, it includes a spread spectrum port 1 and a spread spectrum port 2; the input end of the spread spectrum port 1 is connected to the output end of the attenuator 4 31, the input end of the attenuator 4 31 is connected to the output end of the frequency multiplier 41, the input end of the frequency multiplier 41 is connected to one of the output ends of the power divider 5, and the frequency multiplier 41 can amplify the frequency by N times; the output end of the spread spectrum port 2 is connected to the input end of the attenuator 5 32, the output end of the attenuator 5 32 is connected to The RF port of mixer 6 is connected, the LO port of mixer 6 is connected to the output end of frequency multiplier 2 42, the input end of frequency multiplier 2 42 is connected to another output end of power divider 5, and frequency multiplier 2 42 can amplify the frequency by N-1 times; the input end of power divider 5 is connected to the output end of amplifier 1 71, and the input end of amplifier 1 71 is connected to the output end of attenuator 1 33; the IF port of mixer 6 is connected to the input end of attenuator 3 34, the output end of attenuator 34 is connected to the input end of amplifier 2 72, and the output end of amplifier 2 72 is connected to the input end of attenuator 2 35.

[0017] In this embodiment, the host device may be a signal source, a vector network analyzer, or a comprehensive analyzer having both a signal source and a vector network analyzer. The spread spectrum port 1 and the spread spectrum port 2 may be waveguides or coaxials.

[0018] When the host is a signal source, there is only one port. At this time, the host port is connected to attenuator 1 33, and extension port 1 is the output port after the signal source frequency is extended. When the host device is a vector network analyzer, the extension port 1 and the extension port 2 are respectively connected to the device under test DUT to measure the S12 or S21 of the device. The attenuator involved in this embodiment is a conventional attenuator chip or module such as 3dB, 6dB, 10dB, etc.;

[0019] The host device inputs a signal from attenuator 1 33, and after the input signal is amplified by the amplifier, the signal is divided into two by the power divider 5, and respectively input into the frequency multiplier 1 41 and the frequency multiplier 2 42. Assuming that the host signal has a frequency of 10-30 GHZ, and the amplification factor of the frequency multiplier 1 41 is 4 times, and the amplification factor of the frequency multiplier 2 42 is 3 times, the frequency multiplier 1 41 and the frequency multiplier 2 42 are mathematically logically related. After amplification by the frequency multiplier 1 41, the signal frequency is amplified to 40-120 GHZ and input into the spread spectrum port 1, and through the frequency multiplier 2 42, the signal frequency at the other end is amplified to 30-90 GHZ and input into the mixer 6 to drive the mixer 6 to perform down-conversion. The intermediate frequency signal obtained enters the host port 2 after passing through the amplifier, and at this time, the device under test DUT can test the 40-120 GHZ bandwidth.

[0020] The frequency extension device described in the utility model mainly includes an amplifier, a frequency multiplier, a mixer, and an attenuator. The frequency extension device does not need to provide an additional clock. After the frequency extension device is introduced, there is no need to change the host. The host's own algorithm can be used for measurement. The structure is simple and the production cost is low.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A frequency extension device for a millimeter wave comprehensive measurement and analysis instrument, characterized in that: including a spread spectrum port 1 and a spread spectrum port 2; The input end of the spread spectrum port 1 is connected to the output end of the attenuator 4, the input end of the attenuator 4 is connected to the output end of the frequency multiplier 1, the input end of the frequency multiplier 1 is connected to one of the output ends of the power divider, and the frequency multiplier 1 can amplify the frequency by N times; The output end of the spread spectrum port 2 is connected to the input end of the attenuator 5, the output end of the attenuator 5 is connected to the RF port of the mixer, the LO port of the mixer is connected to the output end of the frequency multiplier 2, the input end of the frequency multiplier 2 is connected to the other output end of the power divider, and the frequency multiplier 2 can amplify the frequency by N-1 times; the input end of the power divider is connected to the output end of the amplifier 1, and the input end of the amplifier is connected to the output end of the attenuator 1; The IF port of the mixer is connected to the input end of attenuator three, the output end of attenuator three is connected to the input end of amplifier two, and the output end of amplifier two is connected to the input end of attenuator two.

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