Method and quadrature device for compensating mismatch in parallel paths by switching signals therein

• Main Authors: VAN DER ZWAN ERIC JURGEN, BREEMS LUCIEN JOHANNES, DIJKMANS EISE CAREL, KUNNEN HENRICUS J
• Format: Patent
• Language: English
• Published: 02.05.2002
• Edition: 7
• Subjects: BASIC ELECTRONIC CIRCUITRY; CODE CONVERSION IN GENERAL; CODING; DECODING; DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

A quadrature device 1 for a communication device, receiver, transmitter, transceiver, telephone, mixer, modulator or demodulator comprises I and Q signal paths and corresponding signal paths components 2I, 2Q; 4I, 4Q; 9I, 9Q showing a mismatch. The device 1 comprises switching means 3, 3', 6, 3...