Dipole fixation in antenna system
The present invention provides a dipole fixation in an antenna system for fixing dipoles ( 1 ) on a reflector ( 2 ), the dipole fixation comprising fixing members ( 3 ) passing through apertures on the reflector ( 2 ) to fix the dipoles ( 1 ) on the reflector ( 2 ); a first non-conductive member ( 4 ) arranged between the dipoles ( 1 ) and the reflector ( 2 ); and a second non-conductive member ( 5 ) arranged between the fixing members ( 3 ) and the reflector ( 2 ). The dipole fixation of this invention avoids any metal contact between the dipoles and the reflector, guaranteeing the PIM reliability for a long time and obtaining a stable connection.
1. A dipole fixation in an antenna system for fixing dipoles on a reflector, the dipole fixation comprising:
fixing members passing through apertures on the reflector to fix the dipoles on the reflector;
a first non-conductive member arranged axially between and in direct contact with the dipoles and the reflector; and
a second non-conductive member arranged axially between and in direct contact with the fixing members and the reflector;
wherein the fixing members and respective dipoles are not directly coupled to each other.
2. The dipole fixation of claim 1 , wherein the fixing members are metal fixing members.
3. The dipole fixation of claim 1 , wherein the first non-conductive member is a non-metal film.
4. The dipole fixation of claim 1 , wherein the second non-conductive member is a non-metal washer.
5. The dipole fixation of claim 1 , wherein the first non-conductive member is provided with a bulge axially extending into the apertures on the reflector.
6. The dipole fixation of claim 1 , wherein the first non-conductive member is a metal film with non-conductive treatment.
7. The dipole fixation of claim 1 , wherein the second non-conductive member is a metal washer with non-conductive treatment.
8. The dipole fixation of claim 1 , wherein the second non-conductive member is provided with a bulge axially extending into the apertures on the reflector.
9. A dipole fixation in an antenna system for fixing dipoles on a reflector, the dipole fixation comprising:
fixing members passing through apertures on the reflector to fix the dipoles on the reflector;
a first non-conductive member arranged axially between and in direct contact with the dipoles and the reflector; and
a second non-conductive member arranged axially between and in direct contact with the fixing members and the reflector;
wherein the first non-conductive member comprises a metal film with a non-conductive treatment.
10. The dipole fixation of claim 9 , wherein the second non-conductive member is a metal washer with non-conductive treatment.
11. The dipole fixation of claim 10 , wherein the second non-conductive member is provided with a bulge axially extending into the apertures on the reflector.
12. The dipole fixation of claim 9 , wherein the second non-conductive member is provided with a bulge axially extending into the apertures on the reflector.