PURPOSE: To fix a connector firmly and make a high frequency apparatus compact as well.

CONSTITUTION: A heat-resistant holder 14 is inserted into the inside of a case 13 having good solderability at least in the outer circumference and a terminal 15 is stored in the holder 14 and thus a connector 11 is formed. The connector 11 is attached to a frame 16 and at the same time a gas is formed between the frame 16 and a part to which a connector attachment part of a circuit substrate 18 stored in the frame 16 is attached and the circumference of the connector attachment part is soldered and fixed by dip-soldering and thus firm fixing is achieved. Also, owing to the heat resistance of the connector 11, the attachment site of the connector 11 is able to come closer to the circuit substrate 18 and the height H1 of the frame 16 can be made low.