Haberleşme için RF Sistem Tasarımı – Faz kaydırma, Hartley/Weaver, image rejection (Ders 13)

Faz kaydırma, Hartley/Weaver, image rejection (Ders 13)

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.

Bu notta neler var?

90^° Phase Shift

Hilbert Transform

Implementation of 90^° phase shift

(1) RC-CR Network

(2) Quadrature down Conversion

Image Reject Receivers (Hartley Architecture)

Weaver Architecture

Çalışma sorusu

Measure of Image Rejection

Weaver Architecture for Image Rejection

Double quadrature Down Conversion

Dual Band Receiver for Weaver Architecture

Dual Band Receiver Example

Notun metni

Düz metin olarak göster (formüller ve çizimler yoktur)

Implementation of 90^° phase shift

(1) RC-CR Network

Ama sadece merkez frekansında 90 derece.

(2) Quadrature down Conversion

2) ω_0<ω_RF Low injection

Image Reject Receivers (Hartley Architecture)

for channel → low side

for image → high side

In case of phase and gain mismatch (error)

Image can not remove completely

Measure of Image Rejection

IRR : Image Rejection Ratio

Weaver Architecture for Image Rejection

ikinci imageden kurtulmak için son kısmı zero if kullanılabilir

Double quadrature Down Conversion

Dual Band Receiver for Weaver Architecture

B. Razavi ``A 900MHz/1800MHz Architecture for Dual Band Application''

Dual Band Receiver Example