IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0194284
(2002-07-15)
|
발명자
/ 주소 |
- Harland, Michael W.
- Kerkhoff, William A.
- Niekamp, Rex L.
- Power, Eric L.
- Rees, David W.
- Steinkamp, Jeffrey H.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
6 |
초록
▼
An antenna is provided that includes a mast, a first dipole, and a second dipole. The first dipole crosses with the second dipole, and the first dipole and the second dipole form a first antenna assembly that is coupled to the mast. A hybrid power divider is coupled to the first antenna assembly, an
An antenna is provided that includes a mast, a first dipole, and a second dipole. The first dipole crosses with the second dipole, and the first dipole and the second dipole form a first antenna assembly that is coupled to the mast. A hybrid power divider is coupled to the first antenna assembly, and an internal feed system, positioned within the mast, is coupled to the hybrid power divider. The antenna may include a rigid coaxial internal and external feed system.
대표청구항
▼
1. An antenna system, comprising:a mast;a first dipole;a second dipole, wherein the first dipole crosses with the second dipole, and wherein the first dipole and the second dipole form a first antenna assembly that is pressurized and coupled to the mast;a pressurized hybrid power divider coupled to
1. An antenna system, comprising:a mast;a first dipole;a second dipole, wherein the first dipole crosses with the second dipole, and wherein the first dipole and the second dipole form a first antenna assembly that is pressurized and coupled to the mast;a pressurized hybrid power divider coupled to the first antenna assembly; andan internal feed system positioned within the mast and coupled to the pressurized hybrid power divider. 2. The antenna system of claim 1, wherein the internal feed system comprises a rigid coaxial feed harness. 3. The antenna system of claim 1, further comprising a two-way power divider coupled to said pressurized hybrid power divider. 4. The antenna system of claim 3, wherein the internal feed system includes a three-way power divider coupled to the two-way power divider. 5. The antenna system of claim 4, further comprising a main power divider coupled to the three-way power divider. 6. The antenna system of claim 5, wherein the main power divider is positioned below a top of an antenna tower, when the antenna system is installed on the antenna tower. 7. The antenna system of claim 1, wherein the mast has a flange. 8. The antenna system of claim 1, wherein the antenna assembly is made at least partially from stainless steel. 9. The antenna system of claim 1, wherein the pressurized hybrid power divider is made at least partially from copper. 10. The antenna system of claim 1, wherein the first dipole and the second dipole comprise at least four radiating elements. 11. The antenna system of claim 1, wherein the pressurized antenna assembly and the pressurized hybrid divider form a pressurizable modular unit. 12. The antenna system of claim 1, wherein the mast comprises access ports. 13. The antenna system of claim 1, further comprising an external feed system positioned external to the mast and comprising a rigid coaxial feed harness. 14. The antenna system of claim 1, wherein said antenna assembly transmits signals in the range of 88-108 MHz. 15. The antenna system of claim 1, further comprising:a third dipole and a fourth dipole that form a pressurized second antenna assembly; anda fifth dipole and a sixth dipole that form a third pressurized antenna assembly, wherein the first antenna assembly, the second antenna assembly, and the third antenna assembly form a first antenna bay. 16. The antenna system of claim 15, further comprising a screen, wherein the screen is positioned intermediate to the pressurized first antenna assembly and the pressurized second antenna assembly. 17. An antenna system comprising:a first dipole half;a second dipole half, wherein the first dipole half and the second dipole half form a first dipole;a third dipole half;a fourth dipole half, wherein the third dipole half and the fourth dipole half form a second dipole, and wherein the first and second dipole form a pressurized first antenna assembly;a mast that supports the pressurized first antenna assembly; andan internal feed system having a rigid coaxial feedline positioned within the mast that feeds the pressurized first antenna assembly. 18. The antenna system of claim 17, further comprising:a pressurized hybrid power divider that maintains a quadrature phasing between the first dipole half, the second dipole half, the third dipole half, and the fourth dipole half. 19. A method for transmitting a circularly-polarized signal, comprising;inputting signal power into a main power divider;transmitting the signal power from the main power divider to main output lines positioned within a pressurized mast;transmitting the signal power from the main output lines to a three-way power divider positioned within the mast;transmitting the signal power from the three-way power divider to a two-way power divider positioned external to the mast;transmitting the signal power from the two-way power divider to a pressurized hybrid power divider; andtransmitting the signal power from the pressurized hybrid power divider to crossed dipoles. 2 0. The method of claim 19, further comprising maintaining quadrature phasing between the crossed dipoles. 21. An antenna system, comprising:means for inputting signal power into a main power divider;means for transmitting the signal power from the main power divider to main output lines positioned within a pressurized mast;means for transmitting the signal power from the main output lines to a three-way power divider positioned within the pressurized mast;means for transmitting the signal power from the three-way power divider to a two-way power divider positioned external to the pressurized mast;means for transmitting the signal power from the two-way power divider to a pressurized hybrid power divider; andmeans for transmitting the signal power from the pressurized hybrid power divider to crossed dipoles. 22. An antenna system, comprising:a mast;a first dipole;a second dipole, wherein the first dipole crosses with the second dipole, and wherein the first dipole and the second dipole form a pressurized first antenna assembly that is coupled to the mast;a pressurized hybrid power divider coupled to the first antenna assembly; anda rigid feed system coupled to the pressurized hybrid power divider.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.