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TRANSCRIPT
Sculpting the Electromagnetic Spectrum with High Performance
Cavity Filters
Jon Scoglio API Technologies Corp – May 2016
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A P I T E C H N O L O G I E S C O R P . CAVITY FILTERS
API Technologies: your source for high performance cavity filters designed to solve the most demanding spectrum challenges for applications spanning commercial, military and space.
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P .
A cavity filter refers to a broad range of RF and Microwave filters which are primarily manufactured through machining operations.
Topologies include: • Combline • Interdigital • Dielectric Resonator • Waveguide • Multiplexers
CAVITY FILTERS OVERVIEW
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P .
Product Features
• 40 MHz to 50 GHz • Low insertion loss • High selectivity Chebyshev and pole-placed • Temperature stable options • High power handling capability • 0.1 to >80% bandwidth
Applications and Technology Trends
• Lower profile designs • Drop-in and surface mount designs to 20 GHz • Low passive intermodulation products
CAVITY FILTERS OVERVIEW
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P .
Relative size to scale
Size vs Insertion Loss Comparison Cavity (Combline) vs Lumped-Element Filter
CAVITY FILTERS CAVITY VERSUS LUMPED-ELEMENT
3% Bandwidth
QU ~ 1800
QU ~ 200
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P .
• Chebyshev
• Pseudo-Elliptic/Cross Coupled
CAVITY FILTERS RESPONSE SHAPES/TOPOLOGIES
Generally, pseudo-elliptic provides optimum performance in a given size
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P .
Design and Optimization through full 3D Electromagnetic Simulation
CAVITY FILTERS ADVANCED SIMULATION
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P . CAVITY FILTERS COMBLINE DIPLEXER
C-Band Combline Diplexer • 11- & 13-section band-pass filters • Resonators machined into housing • Hermetically sealed to handle 35 Watts at 50,000 feet
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P .
C-Band Combline Diplexer Measured Data – Loss, Return Loss & Rejection
CAVITY FILTERS COMBLINE DIPLEXER
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A P I T E C H N O L O G I E S C O R P . CAVITY FILTERS DUAL PENTAPLEXER
Dual Pentaplexer
• Two mirrored units back-to-back • Covers DC to 11 GHz • Machined in-house • Space Qualified
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A P I T E C H N O L O G I E S C O R P . CAVITY FILTERS DUAL PENTAPLEXER
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
1000
0
1100
0
1200
0
Frequency (MHz)
Rej
ectio
n (d
B)
-50
-40
-30
-20
-10
0
Ret
urn
Loss
(dB
) CH1 +24CCH2 +24CCH3 +24CCH4 +24CCH5 +24CInput R.L.
Dual Pentaplexer Performance
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P . CAVITY FILTERS DIELECTRIC RESONATOR NOTCH FILTER
Co-Location Mitigation Filter • QU > 30,000 • 50 dB Rejection, 1 MHz from Band Edge • Notches A6/A7 bands • Ideal for wireless
telecom applications
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P .
3D EM Model
CAVITY FILTERS INNOVATIVE DESIGN APPROACHES
Internal Waveguide Structures with Coax In/Out
• 40 GHz Highpass • Unique, cost-effective design
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P .
3D EM Model
CAVITY FILTERS INNOVATIVE DESIGN APPROACHES
Internal Waveguide Structures with Coax In/Out
• 31.4 GHz Bandpass • Space Application • Highly temperature stable (invar housing)
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P .
HIGH PERFORMANCE CAVITY FILTERS
API Technologies’ Standard & Customizable Cavity Filters
• High performance • Designs satisfying the
most challenging requirements
• Low loss • Commercial, military and
space applications
API CONFIDENTIAL
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A P I T E C H N O L O G I E S C O R P .
HIGH PERFORMANCE CAVITY FILTERS
Jon Scoglio (302) 462-3526
Distribution Partner: RFMW
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