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System and device for transmission using ultrawide band pass filter

A transmission system and filter technology, applied in transmission systems, waveguide devices, electrical components, etc., can solve the problems of large and expensive equipment

Inactive Publication Date: 2005-03-16
DAIDO STEEL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such high-performance wave-shaping filters should be highly accurate and fine, so the equipment is bulky and expensive

Method used

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  • System and device for transmission using ultrawide band pass filter
  • System and device for transmission using ultrawide band pass filter
  • System and device for transmission using ultrawide band pass filter

Examples

Experimental program
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[0023] Experiment 1

[0024] An experimental setup of components shown in Figure 2 was constructed to determine the emission characteristics of UWB pulsed signals exceeding 1 Gbps in a microstrip frequency-limited environment. The pulse generator can generate a signal with a maximum of 3Gbps, and the duty cycle of the signal (that is, the pulse width / symbol distance of information) is variable. UWBPF has as attached image 3 The characteristics shown, the 3dB bandwidth is 2GHz around the center of 2GHz, and the insertion loss is up to a few dB within the 3dB bandwidth.

[0025] The signal from the pulse generator is transmitted to the receiving circuit through UWBPF. In the receiving circuit, a synchronization point is determined based on a known information signal sequence, and 1 / 0 is determined based on a signal level at the synchronization point. The output of the UWBPF and the input of the receiving circuit are connected with a coaxial cable. The output of UWBPF is con...

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PUM

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Abstract

Disclosed are a transmission system and a device of small scale, low cost and low power for transmitting signal of a rate over 1Gbps using a small scale and low loss ultrawide band pass filter (UWBPF). The transmission system comprises the steps of generating pulse signal by a short pulse generator, band-limiting the pulse signal by passing it through a waveshape forming filter, and transmitting the resulting pulse signal in a certain frequency band through a UWBPF, and receiving and passing the signal wave through a UWBPF of the same frequency range and introducing the signal wave through a pulse detector into the determining part. The UWBPF used is prepared by forming a distribution constant circuit on a lossy substrate having low-pass function.

Description

technical field [0001] The invention relates to a system and device for transmitting using an ultra-wideband pass filter. In this specification, "Ultra Wide Band" is abbreviated as "UWB", "Band Pass Filter" is abbreviated as "BPF", and thus "Ultra Wide Band Pass Filter" is abbreviated as "UWBPF". The invention also relates to the above-mentioned device for UWB transmission, ie a transmitter and a receiver. Background technique [0002] The current trend is that the bandwidth of information transmission is becoming wider and even ultra-wide. UWB transmission system is a typical system of this trend. Trials have been carried out to implement transmission at rates up to several Gbps by using short pulses with a width of a few nanoseconds or less without using a carrier. The FCC (Federal Communications Commission) of USA sets the frequency band used for such communication to 3.1-10.0 GHz. For high-quality transmission of UWB digital information at rates exceeding 1 Gbps usin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203H01P1/215H04B1/04H04B1/16
CPCH01P1/215H04B1/7172H01P1/20363
Inventor 斋藤章彦原田博司
Owner DAIDO STEEL CO LTD