Haberleşme için RF Sistem Tasarımı · Dijital ders notu
Receiver architectures (heterodyne, image frequency)
- Ders
- Haberleşme için RF Sistem Tasarımı (ELM667)
- Dönem
- 7. Dönem · 2024–2025 Güz
- Biçim
- PDF · 12 sayfa · 0,5 MB · el yazısı görünümlü LaTeX
- Orijinal not
- Ders-10.pdf
Uyarı: Dijital notlar, el yazısı notlardan Claude (Anthropic) yardımıyla oluşturulmuştur; yardımcı kaynak olarak hazırlanmıştır ve hata içerebilir. Orijinal notları ve resmi ders kaynaklarını esas alın.
The digital notes were created from the handwritten notes with the help of Claude (Anthropic); they are meant as a supplementary resource and may contain errors. Always rely on the original notes and the official course materials.
The digital notes were created from the handwritten notes with the help of Claude (Anthropic); they are meant as a supplementary resource and may contain errors. Always rely on the original notes and the official course materials.
Bu notta neler var?
- Design Architecture of Receivers
- GSM 900 band
- Down Conversion
- Heterodyne Receivers
- Image Frequency: Hayal Frekans
- 2 scenarios
- Dual Conversion Receiver
Notun metni
Düz metin olarak göster (formüller ve çizimler yoktur)
_T=0,5 → microstrip antenna efficiency
G_T=11 dB → antenna gain
P_in=40 W (input power before antenna)
Design Architecture of Receivers
Band → frequency allocated for specific application
Off-chip filter → eğer filtrenin keskin olmasını istersek
Narrowband sharp roll-off filter is not possible
Uplink band & channels.
Downlink band & channels
1- Tunable IF Filter, constant LO
2 → Constant IF Filter, Tunable LO
High side injection
Low side injection
High-side Injection
Image Frequency: Hayal Frekans
1) ω_LO far from ω_RF and high ω_IF
2) ω_LO close to ω_RF and low ω_IF
Dual Conversion Receiver