Triple-anode "three-fingered" Schottky Barrier Diode

D-Anode Separation
  • Extremely Low 3rd Harmonic Conversion Loss

  • Minimal Phase Noise
In conjunction with:
California Institute of Technology (Caltech)
NASA Jet Propulsion Laboratory (JPL)
  2 x 1 Anti-Parallel Triple-Anode "three-fingered" Schottky Barrier Diode Parallel Architecture "three-fingered" Schematic
Simulated Broadband Frequency Response: "three-fingered"-Δ Simulated Broadband Frequency Response:
Ideal (D = 0)
Simulated Broadband Frequency Response: Conventional Foundry-Δ
 

 

"three-fingered" MATLAB Simulink Model

50-60 GHz Broadband Frequency Tripler
(using "three-fingered" Schottky Diodes)

Cryogenically Cooled

Developed for:
the National Radio Astronomy Observatory (NRAO)
Expanded Very Large Array (EVLA) Project

In conjunction with:
California Institute of Technology (Caltech)
NASA Jet Propulsion Laboratory (JPL)
Raytheon
 

55 TRP 1

SIZE: 2000 X 2000 X 100 um
CAPACITORS: 330 pF / mm^2
RESISTORS: 30 Ohms / sq.
DIODES: two 1 x 3 um Schottky
INPUT: 16.6 - 20 GHz at 17-20 dBm
OUTPUT: 50 - 60 GHz

55 TRP 1

(SCHEMATIC)

91-124 GHz Broadband Frequency Mixer (using "three-fingered" Schottky Diodes)

Cryogenically Cooled

Developed for:
the National Radio Astronomy Observatory (NRAO)
Expanded Very Large Array (EVLA) Project

In conjunction with:
California Institute of Technology (Caltech)
NASA Jet Propulsion Laboratory (JPL)
Raytheon
 

108 MIX 1

SIZE: 2000 X 730 X 100 um
CAPACITORS: 330 pF / mm^2
RESISTORS: 30 Ohms / sq.
DIODES: four 1 x 3 um Schottky
RF INPUT: 91 - 124 GHz
LO INPUT: 90.8 - 124.2 GHz
IF OUTPUT: +/- 20 GHz...200 MHz

108 MIX 1

(SCHEMATIC)

120-144 GHz Broadband Frequency Tripler (using "three-fingered" Schottky Diodes)

Cryogenically Cooled

Developed for:
the National Radio Astronomy Observatory (NRAO)
Expanded Very Large Array (EVLA) Project

In conjunction with:
California Institute of Technology (Caltech)
NASA Jet Propulsion Laboratory (JPL)
Raytheon
 

132 TRP 1

SIZE: 2000 X 730 X 100 um
CAPACITORS: 330 pF / mm^2
RESISTORS: 30 Ohms / sq.
DIODES: two 1 x 3 um Schottky
INPUT: 40 - 48 GHz at 17-20 dBm
Output: 120 - 144 GHz

132 TRP 1

(SCHEMATIC)

Sub-Millimeter Wave MMIC Circuit Development with Raytheon
(using "three-fingered" Schottky Diodes)

Cross-Discipline MMIC Chip and Component Architectures

In conjunction with:
California Institute of Technology (Caltech)
NASA Jet Propulsion Laboratory (JPL)
Raytheon
 

MMIC Solutions I

PICTURED (UL to LR): 45MIX1, 43TRP1, 132TRP1, 34ATT20

MMIC Solutions II

PICTURED (UL to LR): 34SW1, 55TRP1, 34ATT10, 81TRP1

Ka-Band (26.5 GHz - 40 GHz) Downconverter Development
(using "three-fingered" Schottky Diodes)

Cryogenically Cooled

Developed for:
the National Radio Astronomy Observatory (NRAO)
Expanded Very Large Array (EVLA) Project

In conjunction with:
California Institute of Technology (Caltech)
NASA Jet Propulsion Laboratory (JPL)
Raytheon
 

Ka-Band Downconverter (33 MIX 1)

RF Frequency Range: 26 to 40 GHz
LO Frequency Range: 36 to 48 GHz
IF Frequency Range: 8 to 18 GHz
RF to IF Gain: 14 +/- 1.5 dB
Gain variation: < 1 dB in any 2 GHz
Noise figure: < 7 dB
Input P1 dB: > -18 dBm
LOref to IF leakage: -60 dBm

Center-Block Chassis Layout

Small-Signal Schematic
Ka-Band Downdonverter Split-Block Chassis Design Chassis Machining Assembly

33MIX1 (Detail)

SIZE: 2000 X 730 X 100 um
CAPACITORS: 330 pF / mm^2
RESISTORS: 30 Ohms / sq.
DIODES: four 1 x 3 um Schottky
RF INPUT: 26 - 40 GHz
LO INPUT: 36 - 48 GHz
IF OUTPUT: 8 - 18 GHz
Ka-Band Downconverter
Central Mixer Lc (dB)
Ka-Band Downconverter
Assembled Module Lc (dB)
 
  Ka-Band Downconverter Testing Assembly Ka-Band Downconverter Testing Assembly

Q-Band (40-50 GHz) Low-Noise Amplifier Development
(using "three-fingered" Schottky Diodes)

Cryogenically Cooled

Developed for:
the National Radio Astronomy Observatory (NRAO)
Expanded Very Large Array (EVLA) Project

In conjunction with:
California Institute of Technology (Caltech)
NASA Jet Propulsion Laboratory (JPL)
Raytheon

 

  Q-Band LNA (Assembled) Q-Band LNA (Interior)



 

40LN2

SIZE: 2000 X 730 X 100 um
CAPACITORS: 330 pF / mm^2
RESISTORS: 30 Ohms / sq.
DIODES: four 1 x 3 um Schottky
RF INPUT/OUTPUT: 40 - 50 GHz
BROADBAND GAIN (A): 20 dB
Q-Band Low-Noise Amplifier (LNA)
Split-Block Chassis Design
Q-Band LNA (40LN2) Open-Chassis
Broadband Gain (log|sij|)
Q-Band LNA (Assembled) Measured Gain Anomany Q-Band LNA Sonnett Hypothesized B-Coupling (Shortened Alumina Filter Electrical Length) Q-Band LNA Machining Solution
Q-Band LNA (Assembled) Measured Gain Reclaimed Q-Band LNA Printed Circuit Board (PCB) and Layout Q-Band LNA Signal Path (Detail)
a) c)
b) d)
Q-Band LNA Printed Circuit Board (PCB) Schematic Q-Band LNA S-parameters (operation):
a) s21
b) s22
Q-Band LNA S-parameters (operation):
c) s12
d) s11

RF Component Design and Modeling

Passive and Active (mHEMT) RF Structures

In conjunction with:
California Institute of Technology (Caltech)
NASA Jet Propulsion Laboratory (JPL)
Raytheon
 

45 BPF 1

SIZE: 155 x 40 mils
SUBSTRATE: 5 mil thick Alumina
METALIZATION: WTi with 200u" Au for wire bonding
VIAS: 3 mil diameter, plated-thru
OUTPUT: 40 - 50 GHz

45 BPF 1 Simulated

S-parameters (log|sij|)

   
   

45 BPF 1 Simulation vs Testing

S-parameters (log|sij|)

45 BPF 1 Coupled-Line Filter: Advanced Design Suite (ADS) Model 45 BPF 1 Sonnett 2.5-D Simulation Model
Metamorphic High Electron Mobility Transistor (mHEMT) ADS Harmonic Balance Model Metamorphic High Electron Mobility Transistor (mHEMT) Simulation/Testing

NASA-Goddard:
Tracking and Data Relay Satellite Survey (TDRSS)

Gaussian Mean Phase Shift Keying Modulator (GMPSK) with Pseudorandom Noise (PN) Ranging "Soft Models": RF Link Modeling

Developed for:
National Aeronautics and Space Administration (NASA)

In conjunction with:
NASA Goddard Space Flight Center

 

GMSK Modulator with PN Ranging Tone (included 1 MHz sub-carrier)

GMSK Modulator with PN Ranging Tone
(no sub-carrier, 4 adjacent channels)

 
  CT GMSK Modulator with PN Ranging Tone (included 1 MHz sub-carrier) Power Spectral Density of GMSK-PN with 4 adjacent channels (excellent peak separation)
6-bit Correlator Design
 
6-bit Digital Signal Correlator

Wearable Sensor Technologies

Foot Analysis 'Sleeve'

Developed for:
Private Customer
 
  12-Section Varistor 'Foot Map' 12-Section Varistor 'Foot Map' (Detail)
 
  12-Section Varistor 'Foot Map' (Detail) 12-Section Varistor 'Foot Map' (Detail)
D

Warner Robins AFB: JSTARS Apron

A Military-Grade, High-Technology C5I Surveillance, Command and Control System

Developed for:
U.S. Air Force

In conjunction with:
L-3 Communications
WR-AFB JSTARS Apron WR-AFB JSTARS PL1-PL3 Security Zones

The WR-AFB project is a multi-tiered monitor, command and control system integration project seeking to protect the Joint Surveillance and Target Attack Radar System (JSTARS) aircraft assets in Warner Robins, GA.
  • Cesarano Technologies™ served as the principal architect of the field programmable gate array sensor interface server (FPGA-SIS) responsible for all sensor monitoring and XML annunciation, and further designed the line-supervision circuits used to detect tamper and spoof on both conductive and fiber data lines.
The WR-AFB project also spans a myriad of various other interworking technological layers including IR FLIR™ video assessment, video motion detection, short and long range RADAR, Diebold™ entry control and BMS technology, relay-based optical and pressure sensors, over 70 video assessment and 30 data feeds, RS-232/422 control protocol nodes, multi-layered encryption and integration into an L-3 proprietary fiber-backbone XML network.
  • Cesarano Technologies™ additionally conceived and introduced a novel, system-level approach to base security by treating each physical security point as a set of numeric states.
By treating each physical security point as a member of both a local and a global numeric set, various behaviours can be imposed or coordinated between numerous security points based on mathmatically similar objects shared via the XML backbone. This can allow portions of the base to be evaluated like a scalable VLSI/ULSI integrated circuit. opening the door to using some modern circuit design technologies to optimize security-related communications across the entire base. Additionally, this approach made it possible to footprint signal paths to illuminate areas in need of enhanced resource allocation.


WR-AFB ARSS RADAR FPGS-SIS
  WR-AFB JSTARS C5I Command & Control Console (CCDE) WR-AFB JSTARS Entry Control Point (ECP)
 
  WR-AFB CCDE and Electronics Rack WR-AFB Sample Electronics Rack
RF Link Budget Analysis

Multi-path and Line-of-Sight Tx/Rx Outpost Frequency Analysis

Developed for:
U.S. Customs and Border Protection (USCBP)
U.S. Air Force (USAF)

In conjunction with:
L-3 Communications, GSI

  Visualization of Rayleigh Fading Long Haul (~15 km) Simulations
RF pathloss link budget and coverage analysis has seen substantial advancement in both accuracy and reliability with the incorporation of United States Geological Survey (USGS NED 1/3 Arc Second) data via the "Seamless Data Warehouse".
  • Cesarano Technologies™ developed a proposal for USCBP to evaluate terrestrial RF operating frequencies for US Customs and Border Protection at southern border stations in each of 2, 7, and 15 GHz frequency bands as alternatives to a more costly satellite-centric solution.
We also contributed simulations and analysis for a proposal under the USAF suggesting a redundant ring architecture between Minutemen missile launch facilities (LFs) and their coordinating master facility (MAF) for North American Minuteman ICBM silos to attain > 95% terrestrial RF communication viability between LF's and MAF's at all times. Cesarano Technologies™ further contributed to evaluating the feasibility of these RF links over satellite.
  • Cesarano Technologies™ exclusively determined that 2/3 of the United States Minuteman ICBM launch facility silos could be sufficiently serviced with redundant terrestrial RF links alone.

Modeling over NED 1/3 ArcSecond USGS Data Link Budget Analysis Parameterization
   

Cesarano Technologies™ Customized Software Suites

Customized Software for Financial and Medical Applications

Developed for:
Private Customers
In 2009, Cesarano Technologies began offering customized software development suites in addition to its reputed hardware-centric services. Stock Predator™ works in real time with incoming stock quote data to perform a variety of traditional mathematical analysis strategies on any publicly traded company or commodity.
  • Stock Predator™ can utilize pricing feeds reserved to licensed securities traders, and was painstakingly coded to work as fast as possible to outperform competing software products by fractions of a second.

  • ThoughtDoc™ is a secure, configurable, rapid access inpatient electronic entrance form developed for flexibility and integration with existing medical software.
Stock Predator™ (Screen Shot 1) Stock Predator™ (Screen Shot 2)
  Stock Predator™ (Screen Shot 3) Stock Predator™ (Screen Shot 4)
ThoughtDoc™ Inpatient Entrance Form (IEF) Software (Screen Shot 1) ThoughtDoc™ Inpatient Entrance Form (IEF) Software (Screen Shot 2) ThoughtDoc™ Inpatient Entrance Form (IEF) Software (Screen Shot 3)
 

  ThoughtDoc™ Inpatient Entrance Form (IEF) Software (Screen Shot 4) ThoughtDoc™ Inpatient Entrance Form (IEF) Software (Screen Shot 5)

Lockdown™ Active Shooter Alert System

As demonstrated on Capitol Hill:
Environmental Threat Detection and Assessment

Developed for:
Lockdown™ Experts
 
 
Lockdown™ is a multi-input threat detection and assessment technology that employs a myriad of strategies to combat active shooter scenarios. Lockdown™ can respond not only to manual activation, but also to sounds outside of a predetermined dynamic range, to unique text message alert codes (e.g., from inside the facility), in response to a network (e.g., internet) cue, and is even capable of extending its inputs to include biological, chemical or radiological threats. Lockdown™ can report directly via network, text message, or over a GSM network, and can currently address 256 distinct inputs per system node.

  • Lockdown™ was allotted federal funding following a demonstration to select members of the U.S. Congress on Capitol Hill in 2016.


  • Lockdown™ is an origninal product developed by Cesarano Technologies, LLC.

Lockdown™
Enclosure Prototype v1.0

Lockdown™
Printed Circuit Board (PCB) Prototype v1.0

Lockdown™
Central Processing Prototype v1.0
Lockdown™
Transmitter (TX-PCB) Prototype v2.0
 
Lockdown™
Informal Demonstration
  Lockdown™
Receiver (RX-PCB) Prototype v2.0