RF components

RF_Passive 110. RF Passive Components
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Tony Fang, NTU 2003 10-1

Outline
1. Introduction to RF Front End 2. Filter 3. Balun 4. Antenna 5. MLC/LTCC Technology 6. RF Modules
Tony Fang, NTU 2003 10-2

RF Block Diagram of GSM Handset
Mixer BPF LNA BPF

BPF Ant. SW

LNA

BPF

VCO

Diplexer APC SW LPF Coupler PA Balun

Mixer LPF Coupler APC PA Balun

Switch Module Front-End Module
Balance Passive Component

PA Module
Balance Active Device

Tony Fang, NTU 2003

10-3

Outline
1. Introduction to RF Front End 2. Filter 3. Balun 4. Antenna 5. MLC/LTCC Technology 6. RF Modules
Tony Fang, NTU 2003 10-4

1. Filter design by insertion loss method
PLR Pinc Power available from source 1 = = = Pload 1 Γ 2 power delivered to load

IL = 10 log PLR a. Max