Oke dị irè nke aantenna microwavedabere n'okirikiri ugboro ole ya, uru ya na ọnọdụ ngwa. N'okpuru bụ ndakpọ teknụzụ maka ụdị antenna nkịtị:
1. Frequency Band & Range Correlation
- E-band antenna (60–90 GHz):
Njikọ dị mkpụmkpụ, ikike dị elu (1-3 km) maka 5G backhaul na ndị agha comms. Attenuation ikuku ruru 10 dB / km n'ihi nnabata oxygen. - Antenna Ka-band (26.5–40 GHz):
Satellite comms nweta 10-50 km (ala-na-LEO) na 40+ dBi uru. Mbelata mmiri ozuzo nwere ike ibelata oke site na 30%. - 2.60–3.95 GHzAntenna mpi:
Mkpuchi nke etiti (5-20 km) maka radar na IoT, na-edozi ntinye na ọnụego data.
2. Antenna Ụdị & Arụmọrụ
| Antenna | Ọnụ ahịa a na-ahụkarị | Oke oke | Jiri Okwu |
|---|---|---|---|
| Antenna biconical | 2–6 dBi | <1km (Nnwale EMC) | Nchọpụta nyocha dị mkpụmkpụ |
| Ọkọlọtọ Gain Horn | 12–20 dBi | 3–10 km | Nhazi/atụ |
| Microstrip Array | 15–25 dBi | 5–50 km | 5G ọdụ ọdụ/Satcom |
3. Ihe mgbako mgbako oke
Atụmatụ nha nhata nke Friis (*d*):
d = (λ/4π) × √(P_t × G_t × G_r / P_r)
Ebe:
P_t = Nyefee ike (dịka, radar 10W)
G_t, G_r = Uru mpi Tx/Rx (dịka, mpi 20 dBi)
P_r = Mmetụta nnata (dịka -90 dBm)
Ndụmọdụ bara uru: Maka njikọ satịlaịtị Ka-band, jikọta mpi nnukwu uru (30+ dBi) na ụda mkpọtụ dị ala (NF <1 dB).
4. Oke gburugburu
Attenuation mmiri ozuzo: Mgbama Ka-band na-atụfu 3–10 dB/km na oke mmiri ozuzo.
Mgbasa Beam: 25 dBi microstrip array na 30 GHz nwere obosara nke 2.3º - dabara maka njikọ kpọmkwem-na-point.
Mkpebi: Ogologo antenna Microwave dịgasị iche site na <1 km (ule EMC biconical) ruo 50+ km (Ka-band satcom). Bulite site na ịhọrọ antenna E-/Ka-band maka ntinye ma ọ bụ 2–4 GHz mpi maka ntụkwasị obi.
Iji mụtakwuo maka antennas, biko gaa na:
Oge nzipu: Ọgọst-08-2025
