Signal propagation circuit and signal processing apparatus

A signal processing apparatus, comprising:

• a substrate,
• the substrate comprising:
• a signal propagation path circuit comprising:
• a signal propagation path to propagate a signal from an input end, in which signal propagation path a terminating resistance coupled to an output end substantially matches impedance;
• and
• a transmission line formed in a non-contact manner with the signal propagation path halfway trough the signal propagation path;
• and
• a signal processing unit to perform signal processing by use of a second signal output from the transmission line together with a first signal output from the output end of the signal propagation path.

A signal processing apparatus, comprising:

• a clock signal outputting unit to generate a plurality of clock signals from a common clock;
• a plurality of clock supplying transmission lines each to transmit therethrough each of the plurality of clock signals output from the clock signal output unit;
• a plurality of phase detecting units each to detect a phase of each of the clock signals supplied through the plurality of clock supplying transmission lines;
• and
• a clock controlling unit to control the clock signal outputting unit,
• the plurality of phase detecting units each comprising:
• a substrate,
• the substrate comprising:
• a signal propagation path, comprising:
• a signal propagation path introducing thereto a clock signal from the corresponding clock supplying transmission line from an input end of the signal propagation path, to propagate the clock signal, in which signal propagation path a terminating resistor coupled to an output end substantially matches impedance;
• and a transmission line which is formed in a non-contact manner with the signal propagation path at a position halfway through the signal propagation path;
• a signal processing unit to induce a phase of the clock signal supplied from the corresponding clock supplying transmission line output as a result of signal processing by use of the first signal output from the output end of the signal propagation path together with the second signal output from the transmission path, and
• the clock controlling unit controlling the clock signal outputting unit in such a manner the plurality of clock signals generated by the clock signal outputting unit are substantially in synchronization therewith in accordance with the phases of the clock signals induced by the signal processing units in the plurality of phase detecting units.