-Circuit/System/EM Planar

Ansoft Designer ™Electromagnetically Charged EDA Software

-Full 3D Analysis for RFID

HFSS ™3D EM Simulation Software for RF, Wireless,

RFID tag, and Antenna Design

Filter Design Solutions

Ansoft Solutions Ansoft Solutions for Filter for Filter

ANSOFT HF/SI Solution

NEXT GENERATIONNEXT GENERATION

-RFID Tag RLC Extraction

Q3D ™Automatic RLC matrix Extraction for arbitrary 3D

ANSOFT Filter Solution

Key Point : Advanced Filter design needs to coKey Point : Advanced Filter design needs to co--simulate simulate by circuit and 2D/3D by circuit and 2D/3D Electromagnetc Electromagnetc solver.solver.

Waveguide Waveguide FilterFilter

Dielectric FilterDielectric FilterMicrostripMicrostrip FilterFilter

LTCC FilterLTCC Filter

Microwave FilterMicrowave FilterMicrowave Filter is a two-port network used to control the frequency response at a certain point in a microwave system by providing transmission at frequencies within the passband of the filter and attenuation in the stopband of the filter

Ansoft DesignerAnsoft Designer™™Filter Design Wizard

Filter Design Tool is an interactive design utility for designing filters for high frequency RF and microwave applications.

The capabilities of the Filter Design Tool include:• Design of ideal lumped element filters• Design of filters employing inverters• Design of coupled resonator bandpass filters• Design of transmission line filters• Design of coupled line filters• Design of combline, interdigital and hairpin bandpass filters• Design of waveguide bandpass filters• Design of filters having various approximations including Chebyshev, Bessel, etc.• Design of filters using stripline, microstrip, rectangular bars etc.• Application of simple individual element or circuit modifications• Application of network transformations• Exporting schematic and layout to Ansoft Designer desktop

Design Example :Design Example :Design and Optimization of Low Cost Tunable VHF PBF

1. Ansoft Designer Filter Synthesis: Enter specifications

2. Circuit Completion: Schematic and Layout

3. Test with SMA Connector Designer + HFSS

SMA effects

Tuning bias

Statistical analysis

SMA ConnectorHFSS V9

Design Example :Design Example :Dielectric/Coaxial Resonator Cavity Filter

1. Analysis of a Single Dielectric Resonator in HFSS

2. The equivalent circuit of 5-pole filter can be built in Designer

3. Optimized 5-pole filter in HFSS and Designer

+=

|S21

| dB |S11| dB

Response in HFSS after optimization in Designer

Generated in HFSS

Design Example :Design Example :High Performance Cavity Filter Design

1. Define parameterized individual model in HFSS.

??

???

?),(),(),(),(

2221

1211

????

dSdSdSdS

S-parameters depend on frequency and aperture width.

2. Create the entire filter in Designer by importing from individual HFSS Design models.

The model is fully parameterized!

3. Optimize the filter response by “interpolating existing solutions.”

-50

-40

-30

-20

-10

0

9.5 9.7 9.9 10.1 10.3 10.5

Frequency (GHz)

dB

Design Example :Design Example : LTCC Solution

1. Embedded Passives Modeling & Library (Ansoft Designer + HFSS, Q3D)

2. Create circuit in Ansoft Designer, Find the correspondent geometric structure with Ansoft's 2D/3D EM simulator(Designer,HFSS,Q3D)

Ansoft DesignerTM

System Solver :Design spec./ architecture

Circuit & Layout :Circuit design,

Required component parameters fitting

2.5D Field Solver :

Pattern layout analysis

RLC extraction :Component parameters extraction and library

construction

3D Field Solver:Full Module Field analysis

before manufacturing HFSSTM , Q3DTM

Ansoft Designer

Ansoft DesignerHFSS V9

HFSS V9

Ansoft Korea HF/SI Technical Support/ Sales

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