Sculpting the Electromagnetic Spectrum with High Performance

Cavity Filters

Jon Scoglio API Technologies Corp – May 2016

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

API CONFIDENTIAL

10

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

API CONFIDENTIAL

11

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

12

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

13

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

14

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

15

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

16

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

Jon.Scoglio@apitech.com

Distribution Partner: RFMW

API CONFIDENTIAL