A 1-40 ghz down conversion assembly

Abstract

This utility model discloses a 1-40GHz downconverter component, comprising a 1-6GHz input channel, a 6-18GHz input channel, and a 33-40GHz input channel; a 3-18GHz output channel and a 1.75-1.85GHz output channel; the 1-6GHz input channel is composed of a 1-6GHz filter, a first limiter, a first amplifier, and a first power divider connected in series; the 33-40GHz input channel is composed of a 33-40GHz filter, a second limiter, a fourth amplifier, and a second power divider connected in series; the 6-18GHz input channel is composed of a 6-18GHz filter, a third limiter, a seventh amplifier, and a third power divider connected in series. This utility model has the advantages of wide bandwidth, high adaptability, high precision, and strong anti-interference, and also has dual-band coverage capability of 1-18GHz and 33-40GHz, which can seamlessly adapt to complex signals in multiple fields such as communication and radar, greatly improving the overall performance of electronic systems.

Description

Technical Field

[0001] This utility model relates to the field of microwave communication, and in particular to a 1-40GHz downconversion component. Background Technology

[0002] In electronic systems such as communications and radar, downconversion technology is a key step in realizing signal frequency conversion, which can convert high-frequency signals into intermediate-frequency signals that are easier to process.

[0003] Traditional downconversion channels have significant drawbacks: a narrow input frequency range, making it difficult to cover multi-band signals and limiting the application of equipment in different scenarios; poor input power adaptability, with weak signals easily lost and strong signals damaging downstream circuits; furthermore, weak anti-interference capability, high spurious levels, poor out-of-band rejection, susceptibility to external interference, and unstable output signals. As electronic systems increasingly demand higher signal processing capabilities, such as processing wider frequency bands and more complex signals, traditional downconversion channels can no longer meet the requirements. There is an urgent need to develop downconversion channel technology with wide bandwidth, high adaptability, high precision, and strong anti-interference capabilities to improve the overall performance of electronic systems. Utility Model Content

[0004] The purpose of this invention is to provide a 1-40GHz downconversion component that supports multi-band, multi-mode signal access and has strong anti-interference capabilities.

[0005] The purpose of this utility model is achieved as follows: a 1-40GHz downconversion component, including a 1-6GHz input channel, a 6-18GHz input channel, a 33-40GHz input channel, a 3-18GHz output channel, and a 1.75-1.85GHz output channel;

[0006] The 1-6GHz input channel is composed of a 1-6GHz filter, a first limiter, a first amplifier, and a first power divider connected in series. The first power divider divides power into a first output channel and a second output channel. The first output channel is composed of a first programmable controller, a second amplifier, a first mixer, and a 13-18GHz filter connected in series. The second output channel is composed of a first switching filter, a second programmable controller, a third amplifier, a second mixer, and a 13-18GHz filter connected in series.

[0007] The 33-40GHz input channel is composed of a 33-40GHz filter, a second limiter, a fourth amplifier, and a second power divider connected in series. The second power divider divides power into a third output channel and a fourth output channel. The third output channel is composed of a third programmable controller, a fifth amplifier, a third mixer, and a 6.5-10GHz filter connected in series. The fourth output channel is composed of a fourth programmable controller, a sixth amplifier, a fourth mixer, and a 3-10GHz filter connected in series.

[0008] The 6-18GHz input channel is composed of a 6-18GHz filter, a third limiter, a seventh amplifier, and a third power divider connected in series. The third power divider divides power into a fifth output channel and a sixth output channel. The fifth output channel is composed of a first single-pole double-throw switch, a second switch filter, a fifth programmable controller, an eighth amplifier, a sixth programmable controller, a ninth amplifier, a seventh programmable controller, a fifth mixer, a 4.95-5.05GHz filter, a tenth amplifier, a sixth mixer, a 1.75-1.85GHz filter, an eleventh amplifier, an eighth programmable controller, a twelfth amplifier, a 1.75-1.85GHz amplifier, and a thirteenth amplifier connected in series to output 1.74-1.85GHz.

[0009] The second output channel and the third output channel are combined into one output through the second single-pole double-throw switch and connected to the input terminal of the first single-pole double-throw switch;

[0010] The first, fourth, and sixth output channels are combined with a single-pole triple-throw switch to form a single output channel with a frequency of 3-18 GHz.

[0011] Preferably, the first mixer and the second mixer are both mixed with a 19G local oscillator, the third mixer is mixed with a 26.5G / 30G local oscillator, the fourth mixer is mixed with a 30G local oscillator, the fifth mixer is mixed with an 11-23G local oscillator, and the sixth mixer is mixed with a 6.8G local oscillator.

[0012] Preferably, the first switch filter group consists of a two-stage single-pole four-throw switch and a 1-1.6G filter, a 1.4-2.4G filter, a 2.2-3.6G filter, and a 3.4-6G filter. The signal is output in four paths through the single-pole four-throw switch, and then divided into four frequency segments by the 1-1.6G filter, the 1.4-2.4G filter, the 2.2-3.6G filter, and the 3.4-6G filter, respectively. Finally, the signals are combined into one signal output by the single-pole four-throw switch.

[0013] Preferably, the first switch filter group consists of a two-stage single-pole four-throw switch and a 6-9G filter, a 9-12G filter, a 12-15G filter, and a 15-18G filter. The signal is output in four paths through the single-pole four-throw switch, and then divided into four frequency segments by the 6-9G filter, the 9-12G filter, the 12-15G filter, and the 15-18G filter, respectively. Finally, the signals are combined into one signal output by the single-pole four-throw switch.

[0014] Preferably, the first output channel, the fourth output channel, and the sixth output channel are connected to a single-pole triple-throw switch and then connected in series with the ninth programmable controller and the fourteenth amplifier.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] 1. This channel features independent input design for three frequency bands: 1-6GHz, 6-18GHz, and 33-40GHz. Combined with dual output modes of 1.75-1.85GHz narrowband and 3-18GHz wideband, it achieves ultra-wideband coverage of 1-40GHz. Its multiple local oscillators (19G / 26.5G / 30G / 6.8G) and programmable amplifiers dynamically adjust the gain, supporting parallel access and flexible switching of multi-band signals. This significantly improves the system's adaptability to complex electromagnetic environments and is suitable for scenarios such as satellite communication and radar detection.

[0017] 2. The multi-stage filter cascade design effectively suppresses harmonics and spurious signals. Combined with the dynamic gain adjustment of the programmable amplifier, it ensures linearity when multiple signals are connected at the same time, meeting the requirements of high dynamic range applications.

[0018] 3. The limiters at the 1-18GHz and 33-40GHz input terminals have a power handling capacity of ≥33dBm and ≥30dBm respectively, which can protect the back-end circuits from high-power signal impacts, prevent device damage, extend equipment life and enhance system stability.

[0019] 4. Power compatibility of this utility model: -60 to 0dBm input power range, which can stably process weak and strong signals and ensure signal integrity; ≥40dB input instantaneous dynamic range, effectively distinguishing between strong and weak signals, avoiding strong signal interference, and improving signal processing accuracy. Attached Figure Description

[0020] Figure 1 This is a flowchart illustrating the present invention. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0022] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1 As shown, a 1-40GHz downconversion component includes a 1-6GHz input channel, a 6-18GHz input channel, a 33-40GHz input channel, a 3-18GHz output channel, and a 1.75-1.85GHz output channel;

[0025] The 1-6GHz input channel is composed of a 1-6GHz filter, a first limiter, a first amplifier, and a first power divider connected in series. The first power divider divides power into a first output channel and a second output channel. The first output channel is composed of a first programmable controller, a second amplifier, a first mixer, and a 13-18GHz filter connected in series. The second output channel is composed of a first switching filter, a second programmable controller, a third amplifier, a second mixer, and a 13-18GHz filter connected in series.

[0026] The 33-40GHz input channel is composed of a 33-40GHz filter, a second limiter, a fourth amplifier, and a second power divider connected in series. The second power divider divides power into a third output channel and a fourth output channel. The third output channel is composed of a third programmable controller, a fifth amplifier, a third mixer, and a 6.5-10GHz filter connected in series. The fourth output channel is composed of a fourth programmable controller, a sixth amplifier, a fourth mixer, and a 3-10GHz filter connected in series.

[0027] The 6-18GHz input channel is composed of a 6-18G filter, a third limiter, a seventh amplifier, and a third power divider connected in series. The third power divider divides the power into a fifth output channel and a sixth output channel. The fifth output channel is composed of a first single-pole double-throw switch, a second switch filter, a fifth programmable controller, an eighth amplifier, a sixth programmable controller, a ninth amplifier, a seventh programmable controller, a fifth mixer, a 4.95-5.05G filter, a tenth amplifier, a sixth mixer, a 1.75-1.85G filter, an eleventh amplifier, an eighth programmable controller, a twelfth amplifier, a 1.75-1.85G amplifier, and a thirteenth amplifier connected in series to output 1.74-1.85GHz.

[0028] The second and third output channels are combined into one output through the second single-pole double-throw switch and connected to the input terminal of the first single-pole double-throw switch;

[0029] The first, fourth, and sixth output channels are combined with a single-pole triple-throw switch to form a single output channel for 3-18GHz.

[0030] The first and second mixers are both mixed with a 19G local oscillator; the third mixer is mixed with a 26.5G / 30G local oscillator; the fourth mixer is mixed with a 30G local oscillator; the fifth mixer is mixed with an 11-23G local oscillator; and the sixth mixer is mixed with a 6.8G local oscillator.

[0031] The first switching filter group consists of two-stage single-pole four-throw switches and filters for 1-1.6G, 1.4-2.4G, 2.2-3.6G, and 3.4-6G. The signal is split into four outputs by the single-pole four-throw switches, and then further split into four frequency bands by the 1-1.6G, 1.4-2.4G, 2.2-3.6G, and 3.4-6G filters, respectively. Finally, the signals are combined into one output signal by the single-pole four-throw switches. By reasonably selecting the local oscillator frequency, accurate conversion from different input frequency bands to the target output frequency band is achieved, ensuring the accuracy and consistency of signal processing.

[0032] The first switching filter group consists of two-stage single-pole four-throw switches and 6-9G, 9-12G, 12-15G, and 15-18G filters. The signal is split into four outputs by the single-pole four-throw switches, and then further split into four frequency segments by the 6-9G, 9-12G, 12-15G, and 15-18G filters, respectively. Finally, the signals are combined into one output signal by the single-pole four-throw switches. This allows for the processing of signals in different frequency bands and the subsequent synthesis and output, enabling flexible selection and processing of signal frequency bands and improving the channel's adaptability and processing capability for signals in different frequency bands.

[0033] The first, fourth, and sixth output channels are connected to single-pole triple-throw switches and then connected in series with the ninth programmable controller and the fourteenth amplifier. The output channels are connected and synthesized through single-pole double-throw switches, single-pole triple-throw switches, etc., so that the channels can stably output signals in different frequency bands such as 3-18GHz and 1.75-1.85GHz as needed, to meet the needs of diverse application scenarios.

[0034] This invention utilizes multi-band input channels working collaboratively to convert high-frequency signals into intermediate-frequency (IF) signals. The 1-6GHz, 6-18GHz, and 33-40GHz input channels respectively filter, limit, and amplify the signals in their respective frequency bands. After power splitting, the input signal is mixed with a specific local oscillator signal through mixers at different paths, converting the signal frequency to the target frequency band. Frequency conversion is achieved using local oscillators such as 19GHz and 26.5GHz / 30GHz. A switching filter group further filters the signal frequency band, followed by filtering and amplification to ensure signal purity. Finally, the 6-18GHz band signal is converted into a 1.75-1.85GHz IF signal output after multi-stage processing, while other frequency band signals are synthesized as needed to output a 3-18GHz signal. This ensures that the output signal meets the requirements for frequency, power, and spurious emissions in applications such as communication and radar.

[0035] The main specifications of this utility model are as follows: a) Input frequency range: 1-18GHz (can be divided into 1-6GHz and 6-18GHz), 33-40GHz; b) Input power range: -60~0dBm; c) Input instantaneous dynamic range: ≥40dB; d) 1-18GHz input terminal with limiter, limiter withstand power: ≥33dBm; 33-40GHz input terminal with limiter, limiter withstand power: ≥30dBm; e) Instantaneous output signal requirements: Output frequency range: 6-18GHz; Output power: ≥ -40dBm; Spurious level: ≤-65dBm (without signal input); Transient link noise figure ≤6dB (1-18GHz); ≤10dB (33-40GHz); f) Intermediate frequency output frequency: 1.75~1.85GHz; h) In-band spurious: ≤-45dBc (tested in both pulse wave and continuous wave modes, in-band spurious level ≤-45dBm with no signal input); g) Out-of-band rejection: ≥50dBc (tested in both pulse wave and continuous wave modes, out-of-band spurious level ≤-50dBm with no signal input).

[0036] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A 1-40GHz downconverter component, characterized in that, It includes 1-6GHz input channels, 6-18GHz input channels, 33-40GHz input channels, 3-18GHz output channels, and 1.75-1.85GHz output channels; The 1-6GHz input channel is composed of a 1-6GHz filter, a first limiter, a first amplifier, and a first power divider connected in series. The first power divider divides power into a first output channel and a second output channel. The first output channel is composed of a first programmable controller, a second amplifier, a first mixer, and a 13-18GHz filter connected in series. The second output channel is composed of a first switching filter, a second programmable controller, a third amplifier, a second mixer, and a 13-18GHz filter connected in series. The 33-40GHz input channel is composed of a 33-40GHz filter, a second limiter, a fourth amplifier, and a second power divider connected in series. The second power divider divides power into a third output channel and a fourth output channel. The third output channel is composed of a third programmable controller, a fifth amplifier, a third mixer, and a 6.5-10GHz filter connected in series. The fourth output channel is composed of a fourth programmable controller, a sixth amplifier, a fourth mixer, and a 3-10GHz filter connected in series. The 6-18GHz input channel is composed of a 6-18GHz filter, a third limiter, a seventh amplifier, and a third power divider connected in series. The third power divider divides power into a fifth output channel and a sixth output channel. The fifth output channel is composed of a first single-pole double-throw switch, a second switch filter, a fifth programmable controller, an eighth amplifier, a sixth programmable controller, a ninth amplifier, a seventh programmable controller, a fifth mixer, a 4.95-5.05GHz filter, a tenth amplifier, a sixth mixer, a 1.75-1.85GHz filter, an eleventh amplifier, an eighth programmable controller, a twelfth amplifier, a 1.75-1.85GHz amplifier, and a thirteenth amplifier connected in series to output 1.74-1.85GHz. The second output channel and the third output channel are combined into one output through the second single-pole double-throw switch and connected to the input terminal of the first single-pole double-throw switch; The first, fourth, and sixth output channels are combined with a single-pole triple-throw switch to form a single output channel with a frequency of 3-18 GHz.

2. The 1-40GHz downconverter component according to claim 1, characterized in that, The first mixer and the second mixer are both mixed with a 19G local oscillator, the third mixer is mixed with a 26.5G / 30G local oscillator, the fourth mixer is mixed with a 30G local oscillator, the fifth mixer is mixed with an 11-23G local oscillator, and the sixth mixer is mixed with a 6.8G local oscillator.

3. The 1-40GHz downconverter component according to claim 1, characterized in that, The first switch filter group consists of two-stage single-pole four-throw switches and 1-1.6G, 1.4-2.4G, 2.2-3.6G, and 3.4-6G filters. The signal is split into four outputs by the single-pole four-throw switches, and then further split into four frequency segments by the 1-1.6G, 1.4-2.4G, 2.2-3.6G, and 3.4-6G filters, respectively. Finally, the signals are combined into one output signal by the single-pole four-throw switches.

4. A 1-40GHz downconverter component according to claim 1, characterized in that, The first switch filter group consists of two-stage single-pole four-throw switches and 6-9G, 9-12G, 12-15G and 15-18G filters. The signal is output in four paths through the single-pole four-throw switches, and then divided into four frequency segments by the 6-9G, 9-12G, 12-15G and 15-18G filters respectively. Finally, the signals are combined into one signal output by the single-pole four-throw switches.

5. A 1-40GHz downconverter component according to claim 1, characterized in that, The first output channel, the fourth output channel, and the sixth output channel are connected to a single-pole three-throw switch and then connected in series with the ninth programmable controller and the fourteenth amplifier.

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