A microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. Proximal and distal radiating portions of the antenna assembly are separated by a junction member. A reinforcing member is disposed within the junction member to increase structural rigidity.

Radiating elements include a first and second dipole arms that extend along a first axis and that are configured to transmit RF signals in a first frequency band. The first dipole arm is configured to be more transparent to RF signals in a second frequency band than it is to RF signals in a third frequency band, and the second dipole arm is configured to be more transparent to RF signals in the third frequency band than it is to RF signals in the second frequency band. Related base station antennas are also provided.

A dipole arm assembly for a low frequency band radiator of a cellular base station antenna comprising: a central shaft; and at least one barrel having a first end, a second end, and a peripheral wall located between the first end and the second end, where the first end includes an end wall provided with an engagement portion, and the barrel is engaged with the central shaft through the engagement portion and disposed about the central shaft.

A dipole arm assembly for a low frequency band radiator of a cellular base station antenna comprising: a central shaft; and at least one barrel having a first end, a second end, and a peripheral wall located between the first end and the second end, where the first end includes an end wall provided with an engagement portion, and the barrel is engaged with the central shaft through the engagement portion and disposed about the central shaft.

A microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. Proximal and distal radiating portions of the antenna assembly are separated by a junction member. A reinforcing member is disposed within the junction member to increase structural rigidity.

A microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. Proximal and distal radiating portions of the antenna assembly are separated by a junction member. A reinforcing member is disposed within the junction member to increase structural rigidity.

A dipole antenna is disclosed. The dipole antenna includes a first arm, a second arm, and a first conductive plate. The first conductive plate is placed inside one of the first arm or the second arm. The first conductive plate creates a cavity inside the one of the first arm or the second arm.

A dipole antenna is disclosed. The dipole antenna includes a first arm, a second arm, and a first conductive plate. The first conductive plate is placed inside one of the first arm or the second arm. The first conductive plate creates a cavity inside the one of the first arm or the second arm.

A communication system includes an antenna assembly and a housing holding the antenna assembly. The antenna assembly has an antenna element having a substrate and a dual dipole antenna circuit including a low-band ground terminal, a low-band feed terminal, a high-band ground terminal and a high-band feed terminal and a transmission line electrically connected to the dual dipole antenna circuit. The housing includes an upper shell and a lower shell meeting at an interface having upper and lower strain relief components at the interface to receive the transmission line. The upper shell has an upper locating feature and the lower shell has a lower locating feature interfacing to locate the upper shell relative to the lower shell.

A communication system includes an antenna assembly and a housing holding the antenna assembly. The antenna assembly has an antenna element having a substrate and a dual dipole antenna circuit including a low-band ground terminal, a low-band feed terminal, a high-band ground terminal and a high-band feed terminal and a transmission line electrically connected to the dual dipole antenna circuit. The housing includes an upper shell and a lower shell meeting at an interface having upper and lower strain relief components at the interface to receive the transmission line. The upper shell has an upper locating feature and the lower shell has a lower locating feature interfacing to locate the upper shell relative to the lower shell.