Presentation - Design of 3D Integrated LTCC Antenna Switch ...
Presentation - Design of 3D Integrated LTCC Antenna Switch ...
Presentation - Design of 3D Integrated LTCC Antenna Switch ...
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<strong>Design</strong> <strong>of</strong> <strong>3D</strong> <strong>Integrated</strong> <strong>LTCC</strong> <strong>Antenna</strong><br />
<strong>Switch</strong> Module Using HFSS
� Introduction<br />
Outline<br />
� What is <strong>Antenna</strong> <strong>Switch</strong> Module ?<br />
� Simulation Method<br />
� Results<br />
� Summary
Triple-Band Front End Block<br />
Diagram
Front End Module Application<br />
<strong>Switch</strong><br />
Diplexer<br />
<strong>Switch</strong><br />
LPF<br />
LPF<br />
GSM SAW<br />
DCS SAW<br />
PCS SAW<br />
APC<br />
Coupler<br />
APC<br />
Coupler<br />
Output<br />
Matching<br />
Output<br />
Matching<br />
PA Module<br />
PA<br />
PA<br />
Present <strong>Antenna</strong> <strong>Switch</strong> Module or <strong>Switch</strong>plexer<br />
Front End Module(ASM + RF SAW)<br />
ASM + PA Module, Powerplexer<br />
ASM + RF SAW +PA Module<br />
GSM/DCS/PCS Transceiver Chip Set<br />
- Direct Conversion / Near Zero IF -<br />
EDGE is Defact 3G Standard !<br />
Input<br />
Matching<br />
Input<br />
Matching<br />
Tx VCO<br />
GSM<br />
DCS
Dual-band <strong>Antenna</strong> <strong>Switch</strong> Module<br />
• RF <strong>Antenna</strong> <strong>Switch</strong> module(ASM)<br />
• Separating the Band <strong>of</strong> Multi-<br />
System<br />
• Key Technology<br />
• <strong>LTCC</strong> technology<br />
• MLC(Multi-layer Ceramic) Technology<br />
• Microwave passive component<br />
design technology<br />
• Microwave integration technology<br />
• Constitution <strong>of</strong> ASM<br />
• Diplexer : Separating the Lower<br />
band & Higher band<br />
• RF Diode <strong>Switch</strong> : Separating Tx,<br />
Rx Frequency<br />
• LPF : Harmonic rejection filter(2f 0 ,<br />
3f 0,… )<br />
P. S<br />
P. S
Tx Mode<br />
Rx Mode<br />
<strong>Switch</strong> Concept Diagram<br />
Phase Shifter<br />
50 Ohm<br />
SMT PIN Diode<br />
ANT Tx<br />
Vc<br />
ON<br />
OFF<br />
SMT PIN Diode<br />
RF GND<br />
50 Ohm<br />
Choke<br />
Current Limiting<br />
Resistor SMT<br />
Rx<br />
Vc = ON/OFF<br />
3V/0V
Shielding Case<br />
MIM<br />
capacitor<br />
<strong>Integrated</strong> <strong>LTCC</strong> Stack-Up<br />
PIN<br />
Diode<br />
SMT I/O<br />
Chip<br />
Resistor<br />
Chip<br />
Inductor<br />
GND<br />
PIN<br />
Diode<br />
Chip<br />
Capacitor<br />
SMT I/O<br />
Inductor(Meander<br />
or Spiral Type)
SAW Filter<br />
Control Logic<br />
Capacitor<br />
or<br />
Inductor<br />
Internal GND<br />
Transmission<br />
Line<br />
High K<br />
Layer<br />
Buried<br />
Capacitors<br />
GND<br />
<strong>Integrated</strong> RF Module<br />
PA Module<br />
I/O<br />
Transistor<br />
Diode<br />
Resistor<br />
Vias<br />
Buried<br />
Resistor<br />
Buried<br />
Filter<br />
Buried<br />
Inductor<br />
<strong>LTCC</strong><br />
◗ <strong>Integrated</strong> Passives<br />
◗ <strong>3D</strong> <strong>Design</strong><br />
◗ Controlled Impedance<br />
◗ Hi Q<br />
◗ Size Reduction<br />
◗ Direct Chip Attach<br />
◗ Rapid Prototypes
Analysis and Implementation Levels<br />
Schematic<br />
Level<br />
Layout<br />
EM<br />
Simulation<br />
Schematic<br />
Pattern<br />
Layout<br />
(using CAD)<br />
HFSS Model<br />
Diplexer<br />
Phase<br />
Shifter<br />
Tune<br />
GSM<br />
LPF<br />
DCS<br />
LPF<br />
Yield<br />
Analysis<br />
Translator<br />
S Parameter<br />
Extraction
PIN Diode<br />
<strong>Integrated</strong> <strong>LTCC</strong> Module Simulation<br />
SMT I/O<br />
Case 1 Case 2<br />
◗ Fully <strong>Integrated</strong> <strong>LTCC</strong> Module Simulation<br />
◗ Lumped Gap Source Port ? 13? ??<br />
◗ Port Setup ? ??, Port ? ??? ?? ??<br />
???<br />
???? ??.<br />
◗ ?? 50? ? ??? Mesh? ???? ???<br />
??? ??
<strong>Integrated</strong> <strong>LTCC</strong> Module Simulation<br />
◗ Fully <strong>Integrated</strong> <strong>LTCC</strong> Module Simulation<br />
???<br />
◗ ??? Port ? ?? ???.<br />
◗ Port ? ??? ?? ?? ? ?? ??<br />
◗ Component ? ? ?? ??? ?? ??? ???<br />
??? ???? ???? ? ???
Diplexer<br />
LPF for GSM<br />
LPF for DCS<br />
Inductor<br />
Partially <strong>Integrated</strong> <strong>LTCC</strong> Module<br />
Simulation<br />
Partially <strong>Integrated</strong> Module<br />
Black Box ? ?<br />
◗ Module? ??? ?? ??<br />
◗ <strong>LTCC</strong> Stack-Up ? ? ? ?? ?? ??<br />
◗ ?? ?? Interference? ?? ? ??
Analysis <strong>of</strong> Circuit(HFSS + Serenade)<br />
LPF for DCS<br />
Diplexer LPF for GSM<br />
Inductor<br />
Diode<br />
S Parameter
Diode Small Signal Equivalent Circuit<br />
Extraction<br />
◗ Diode? On/Off ? ???? S-parameter ? ?<br />
◗ ???? S-parameter? ????? ?? ??<br />
??? ??? ??? ?? ??? ???? ??<br />
??.
GSM Tx Mode<br />
Simulation vs. Measurement<br />
Difference : PCB ? ?? ???? ??<br />
GSM Rx Mode<br />
DCS Tx Mode DCS Rx Mode
Summary<br />
� Analysis <strong>of</strong> partially integrated <strong>LTCC</strong> module is<br />
useful<br />
1) Saving simulation time<br />
2) Rapid redesign<br />
3) Best design cycle performance<br />
� Simulation agree with measured data<br />
� HFSS & Serenade is well suited for <strong>Integrated</strong><br />
<strong>LTCC</strong> Module Analysis
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