Paterson, NJ, United States
Paterson, NJ, United States

Time filter

Source Type

Patent
Synergy Microwave Corporation | Date: 2017-02-15

The present disclosure is directed to a balun circuit (100, 200, 300) adapted to operate at a frequency of between about 5 GHz to about 110 GHz. The balun circuit includes first (120, 220, 320) and second (130, 230, 330) output striplines and an input stripline (110, 210, 310) formed on a first surface of the substrate (101, 201, 301), and a slotline (140, 240, 340) formed on a second surface of the substrate opposite the first surface. The slotline has first (144, 244, 344) and second (146, 246, 346) ends, the first end overlapping the first output stripline and the second end overlapping the second output stripline, and the input stripline overlapping the slotline midway between the first end and the second end.


Pardo C.,Synergy Microwave Corporation
Microwaves and RF | Year: 2015

These synthesized signal sources are available in single- and dual-loop configurations for low-noise output signals to 15 GHz.


Poddar A.K.,Synergy Microwave Corporation | Rohde U.L.,Ludwig Maximilians University of Munich
IEEE Microwave Magazine | Year: 2012

Ajay K. Poddar and Ulrich L. Rohde discuss about the latest technology, the challenges in implementing them, and market trends for frequency generating and timing devices. They predict that the second and third generation of MEMS oscillators will target a larger market for compact oscillators in order to meet temperature-compensated crystal oscillator (TCXO) and oven-controlled timing modules (OCXO) performance requirements. While silicon-based timing devices are still not as capable as crystal oscillators of undertaking sophisticated tasks , they are getting better, and will eventually replace crystals in many contexts. There is a possibility that MEMS-based oscillators fill the application gap between high-performance non-CMOS-compatible quartz technology on the one hand, and low performance CMOS compatible LC oscillators on the other. It is concluded that, the current steady, moderate growth in timing solutions revenue is being driven by the expansion of strong consumer electronics and computer applications sectors, and because silicon timing solutions are improving.


Poddar A.K.,Synergy Microwave Corporation | Rohde U.L.,Synergy Microwave Corporation
Microwave Journal | Year: 2013

Novel crystal oscillator circuits are reported, using medium Q-factor and inexpensive crystal resonator, by which the phase noise of the crystal oscillator at close-in as well as far offset from the carrier, can be minimized using self-injection and mode-locking techniques. The CAD simulated and experimental results are presented to validate the proposed methodology. The unified topology using differential-phase-shift-injection-locking (DPSIL) methods in conjunction with mode-coupled-delay-feedback (MCDF) technique enables low cost low phase noise solutions for both fundamental and overtone-modes crystal oscillator circuits. DPSIL improves the close-in phase noise performance, whereas MCDF prevents mode-jumping and improves the stability and far out phase noise performance. The adaptive filtering techniques, in conjunction with DPSIL-MCDF, suppress the intrinsic 1/f noise of crystal resonator, thereby improved close-in phase noise performance of 125 MHz OCXO circuits.


Zhang L.,Drexel University | Poddar A.,Synergy Microwave Corporation | Rohde U.,Synergy Microwave Corporation | Daryoush A.,Drexel University
IEEE Photonics Journal | Year: 2013

A novel forced oscillation technique is discussed for the phase noise reduction of electrical and optoelectronic oscillators. This paper features self-injection locking using single and dual long fiber-optic delay loops and provides analysis for the phase noise of oscillators employing this technique under various operating conditions. Experimental results are also provided to verify the analytical modeling and to identify techniques to further enhance spectral purity of oscillators. © 2009-2012 IEEE.


Patent
Synergy Microwave Corporation | Date: 2015-04-07

The present disclosure is directed to a balun circuit adapted to operate at a frequency of between about 5 GHz to about 110 GHz. The balun circuit includes first and second output striplines and an input stripline formed on a first surface of the substrate, and a slotline formed on a second surface of the substrate opposite the first surface. The slotline has first and second ends, the first end overlapping the first output stripline and the second end overlapping the second output stripline, and the input stripline overlapping the slotline midway between the first end and the second end.


Patent
Synergy Microwave Corporation | Date: 2013-02-06

Aspects of the disclosure relate generally to a circuit for sustaining an radio frequency (RF) modulated optical signal. The circuit may comprise a self injection locking component having a fiber optic delay line over which a portion of the optical signal propagates. The circuit may also comprise a self phase locked loop component having at least two fiber optic cables having different lengths and over which another portion of the optical signal propagates and a phase detector coupled to the at least two fiber optic cables and configured to determine a phase difference between the signals propagating over one of the respective fiber optic cables. The circuit may further comprise a voltage controlled oscillator configured to generate a stable oscillating signal in response to signals generated by each of the self injection locking and self phase locked loop components, the stable oscillating signal being configured to sustain the optical signal.


Patent
Synergy Microwave Corporation | Date: 2015-04-07

The present disclosure is directed a metamaterial circuit may further be coupled to a mbius strip resonator or a substrate integrated waveguide. The disclosure is also directed to a device having a tuning circuit and a metamaterial resonator operatively coupled to the tuning circuit. The metamaterial resonator operatively coupled to the tuning circuit may likewise be coupled to a mbius strip resonator or a substrate integrated waveguide.


Trademark
Synergy Microwave Corporation | Date: 2012-04-24

Oscillators; Electronic components for radio frequency, microwave and analog applications, namely, frequency synthesizers.


The present invention details fabrication guidelines of integrated optoelectronic oscillators with frequency and phase stability, having higher frequency selectivity in a relatively small size (compared to the larger size of a higher order electrically realized RF filter), reduced temperature sensitivity, and minimized frequency drift. The integrated photonic components and RF oscillator may use Silicon photonics and microelectronic integration using CMOS and BiCMOS technology, eliminating the need for bulky and/or discrete optical and microwave components.

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