A coupler chinhu chinowanzo shandiswa RF microwave mudziyo unoshandiswa kugovera zvakaenzanirana masaini ekuisa kune akawanda anobuda madoko, aine masaini ekubuda kubva kune yega chiteshi ane akasiyana amplitudes uye zvikamu.Inoshandiswa zvakanyanya mumatambo ekutaurirana asina waya, radar masisitimu, microwave yekuyera michina, uye mamwe minda.
Vakaroorana vanogona kukamurwa kuva marudzi maviri maererano nemaitiro avo: microstrip uye cavity.Iyo yemukati meiyo microstrip coupler inonyanya kuumbwa netiweki yekubatanidza inoumbwa nemitsara miviri yemicrostrip, nepo mukati meiyo cavity coupler inongoumbwa nesimbi mbiri mitsetse.