CN2318756Y - High frequencyt device for receiving C-band satellite signal - Google Patents

Abstract

The utility model relates to a high frequency device for receiving C-band satellite signals. The high frequency device for receiving C-band satellite signals is composed of feeding source and a high frequency head. The high frequency device for receiving C-band satellite signals is characterized in that the feeding source and the outer shell with mechanical structure of the high frequency head are integrally connected to be a body. The high frequency head is provided with only one output interface and two probes which are mutually vertical. Consequently, the high frequency device for receiving C-band satellite signals solves the waterproofing problem, the anti-rust problem, and the grounding problem. The high frequency device for receiving C-band satellite signals can simultaneously receive horizontal polarization C band satellite signals and vertical polarization C band satellite signals, so receiving frequency band is widened, and equipment is saved. Because the high frequency device for receiving C-band satellite signals is provided with only one output interface, the trouble of mutual conversion is left out while the high frequency device for receiving C-band satellite signals is used.

Description

A kind of high-frequency device that receives the C-band satellite-signal

The utility model belongs to electric mechanics of communication class, relates in particular to a kind of high-frequency device that receives the C-band satellite-signal.

At present, utilize the programme signal source of satellite transmission more and more, particularly the C-band satellite-signal, simulate, the numeral and deposit, and channel level, perpendicular polarization dispose simultaneously, widened the frequency band that transmits signal, created advantage for we can receive broadband signal.The signal that receives satellite transmission need be set up the grounded receiving station, the grounded receiving station is when receiving satellite signal, parabolic antenna is installed, load onto feed, tuner in focusing place of parabolic antenna, satellite-signal is sent into feed, tuner through the parabolic antenna reflection, send into signal receiving device by cable again, as satellite television receiver.Now feed, the tuner of selling on the market is two separated components, and waterproof, problem antirust and ground connection are difficult; In addition, have only a probe in the structure of tuner, can only receive the C-band satellite-signal in level or vertical direction, frequency band is narrow, and program is few.If need receive the C-band satellite-signal of level and perpendicular polarization electric wave simultaneously, widen the frequency band of received signal, then need set up 2 parabolic antennas, install feed and tuner respectively, or connect upward mechanical rotation equipment, cause the equipment waste.

The utility model is exactly in order to address the above problem, and provides a kind of that feed, tuner is integrated, and can receive level and perpendicular polarization electric wave C-band satellite-signal simultaneously, and be sent to the high-frequency device of satellite television receiver by a lead-out terminal.

A kind of high-frequency device that receives the C-band satellite-signal is made up of feed and tuner, it is characterized in that the mechanical structure shell of feed and tuner is connected as a single entity, and two orthogonal probes are housed in the tuner, and has only an output interface.

Because feed and the incorporate mechanical structure of tuner, thereby solved the problem of waterproof, antirust and ground connection.Owing in the tuner two orthogonal probes are housed, therefore can receive the C-band satellite-signal of level and perpendicular polarization simultaneously again, widen frequency acceptance band, save equipment; A delivery outlet has saved the trouble of changing mutually when using.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a schematic block circuit diagram of the present utility model.

Describe in detail below in conjunction with accompanying drawing.

As shown in Figure 1, the 1st, feed, the 2nd, tuner, the 3rd, horizontal probe, the 4th, Vertrical probe, the 5th, delivery outlet.

As shown in Figure 2, the C-band satellite-signal imports circuit of the present utility model respectively by level and Vertrical probe, and this circuit is that two paths is handled, at last by one tunnel output.After the horizontal polarization electric wave inserts microstrip line by probe, suppress filtering through the amplification of HET low noise amplifier, image frequency, local oscillator LO1 is that the signal of operating frequency is simultaneously sent into balanced mixer with above-mentioned filtering signal through attenuation network and carried out mixing, send into again the BPF band pass filter, in put, above circuit all is the existing standard circuit; In like manner, the perpendicular polarization electric wave enters another passage, through with the signal mixing of local oscillator LO2 after put in sending into.Put in the level that to put the signal output of two passages synthetic through frequency synthesizer with vertical centering control, promptly obtain broadband signal, this broadband signal is sent to the satellite TV signal receiving system by cable again by delivery outlet 5 output, promptly finished the work of reception level simultaneously, perpendicular polarization signal.

Claims (1)

1. A kind of high-frequency device that receives the C-band satellite-signal is made up of feed and tuner, it is characterized in that the mechanical structure shell of feed and tuner is connected as a single entity, and two orthogonal probes are housed in the tuner, and has only an output interface.

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