sws technology - handout
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SPINNER WAVELENGTH SHRINKING | STRETCHING
SWSSPINNER WAVELENGTH SHRINKING | STRETCHING
Shrinking Passive RF Components The size of most RF components depend on the wavelength which is usually determined by the operating frequency via: λ = c/f (c = velocity of light)
SWS shrinks the wavelength at the given operating frequency thus allowing reduction of size
Tailoring Dispersion Relations Conventional λ–dependent coaxial structures only work at a given frequency and odd multiples of it owing to the rigorous relation between frequency and wavelength
SWS enables fl exible dual-band use of a component as it allows bending of the relation between frequency and wavelength
Generating Pass Bands and Stop Bands SWS structures can be designed to support frequency selectivity as it renders possible to generate pass bands and/or stop bands
Overcoming Thermal Limitations of Power Rating Insuffi cient heat transfer from inner to outer conductor owing to low thermal conductivity of dielectrics restricts power handling capability of rigid line components
SWS strongly increases thermal coupling of inner and outer conductor
Suspending Higher Order Mode Disturbance Cut-off frequencies of higher order modes (HOM) limit the usable frequency range and the maximum transversal dimension of a rigid line component, respectively
SWS can create wide monomodal TEM bands above HOM cut-off frequencies by introducing band gaps disabling HOM propagation and thus allowing "over-moded" operation w/o any HOM disturbance
ContactSPINNER GmbHDr. Kai NumssenHead of Innovation ManagementAiblinger Str. 3083620 WesterhamGermanyTel. +49 8063 971-3486Email: k.numssen@spinner-group.comwww.spinner-group.com
© SPINNER GmbH, April 2011
Advancing radiofrequency technology begins with challenging the limitations of state-of-the-art solutions. Aiming to create value-adding innovation for our customers, this approachinspired us to develop novel structures based on coaxial technology that allows us to change fundamental properties of wave propagation by manipulating its dispersion characteristics. SWS - SPINNER Wavelength Shrinking | Stretching opens unprecedented opportunities and lays a completely novel foundation for innovative RF components overcoming limitations of conventional designs. The outstanding capabilities which our SWS technology features encompass:
It is our conviction that the mostvaluable pieces of innovation aregenerated when we collaborate with our customers.
Please let us know where SWS tech-nology can help advancing your RF system.
SPINNER is a global leader in
developing and manufacturing
state-of-the-art RF components.
Since 1946, the industries leading
companies have trusted SPINNER
to provide them with innovative pro-
ducts and outstanding customised
solutions.
Headquartered in Munich, and with
production facilities in Germany,
Hungary, USA, China and Brazil, the
SPINNER Group now has over 1,300
employees worldwide. Our sub-
sidiaries and representatives are
present in over 40 countries and
provide our customers with an inter-
national network of support.
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