Dielectric duplexer and communication apparatus

A dielectric duplexer comprising:

• a dielectric block;
• an outer conductor on exterior surfaces of the dielectric block;
• a first band eliminate filter which includes:
• a first plurality of conductive through holes formed in the dielectric block;
• a first antenna input/output electrode coupled to a first conductive through hole of the first plurality of conductive through holes;
• and
• a first input/output electrode coupled to a second conductive through hole of the first plurality of conductive through holes;
• a second band eliminate filter which includes:
• a second plurality of conductive through holes formed in the dielectric block;
• a second antenna input/output electrode coupled to a first conductive through hole of the second plurality of conductive through holes;
• and
• a second input/output electrode coupled to a second conductive through hole of the second plurality of conductive through holes;
• a first phase circuit exterior to the dielectric block and provided between the first antenna input/output electrode of the first band eliminate filter and an antenna;
• and
• a second phase circuit exterior to the dielectric block and provided between the second antenna input/output electrode of the second band eliminate filter and the antenna.