Abstract: The microwave power is distributed to microwave radiation elements arranged rotationally symmetrically around a reference line on a plane on a top face side of a heating chamber by advancing a feeding phase with a phase difference of 360°/2N clockwise or counterclockwise in turn.

Abstract: A communication system is configured to include a signal repeater that demodulates transmission data on the basis of a first and a second pulse outputted from a transmitter to a transmission line, reproduces the first pulse as a pulse synchronized with a rise of the demodulated transmission data, reproduces the second pulse as a pulse synchronized with a fall of the demodulated transmission data, and outputs each of the reproduced first pulse and the reproduced second pulse to a transmission line.

Abstract: There are included a CAN package (2) having a stem (22) and lead pins (23a and 23b) protruding from the stem (22), and a board (3) having pads (33a and 33b) for connecting lead pin. The CAN package (2) has a slot (222) provided in a surface of the stem (22) from which the lead pins (23a and 23b) protrude. One end of the board (3) is inserted into the slot (222), and the pads (33a and 33b) for connecting lead pin are electrically connected to the lead pins (23a and 23b).

Abstract: A signal compensation line includes at least one of: a first signal compensation line including a first end connected to a main line (3) on a side closer to a first communication device (1) with respect to a first connection point (8-1) counted from the first communication device (1) among connection points (8-1) to (8-3) between the main line (3) and respective first ends of branch lines (5-1) to (5-3), and a second end grounded; or a second signal compensation line including a first end connected to the main line (3) on a side closer to a second communication device (2) with respect to the first connection point (8-3) counted from the second communication device (2) among the respective connection points (8-1) to (8-3), and a second end grounded.

Abstract: A printed circuit board (3) includes a conductor-less area (30) in which a conductor is excluded over an entire edge on a side to which a coaxial connector (2) is attached. An end of a core wire (22) is brought into contact with a signal pad (35) in a state of being covered with a second ground conductor portion (21) of the coaxial connector (2) attached to the conductor-less area (30).

Abstract: The transmission unit includes a digital signal source and a pulse generation circuit. The digital signal source generates a rectangular wave signal. The pulse generation circuit includes a short stub and an open stub, and generates a pulse signal corresponding to the rectangular wave signal. The receiving unit receives the pulse signal from the transmission unit via a lossy transmission path. A comparison circuit having a hysteresis function converts the received pulse signal into a rectangular wave signal.

Abstract: The transmission unit (10) includes a digital signal source (11) and a pulse generation circuit (14). The digital signal source (11) generates a rectangular wave signal. The pulse generation circuit (14) includes a short stub (141) and an open stub (142), and generates a pulse signal corresponding to the rectangular wave signal. The receiving unit (30) receives the pulse signal from the transmission unit (10) via a lossy transmission path (20). A comparison circuit (32) having a hysteresis function converts the received pulse signal into a rectangular wave signal.

Abstract: There are included a CAN package (2) having a stem (22) and lead pins (23a and 23b) protruding from the stem (22), and a board (3) having pads (33a and 33b) for connecting lead pin. The CAN package (2) has a slot (222) provided in a surface of the stem (22) from which the lead pins (23a and 23b) protrude. One end of the board (3) is inserted into the slot (222), and the pads (33a and 33b) for connecting lead pin are electrically connected to the lead pins (23a and 23b).