:class:`Meander`
================


.. py:class:: pyedb.libraries.rf_libraries.base_functions.Meander(edb_cell: pyedb.Edb, pitch: Union[str, float] = 0.001, trace_width: Union[str, float] = 0.0003, amplitude: Union[str, float] = 0.005, num_turns: int = 8, layer: str = 'TOP', net: str = 'SIG')

   
   Fully-parametric micro-strip meander line.


   :Parameters:

       **pitch** : :class:`python:float`, :obj:`default` 1 :obj:`mm`
           Vertical spacing between successive meander rows [m].

       **trace_width** : :class:`python:float`, :obj:`default` 0.3 :obj:`mm`
           Width of the micro-strip [m].

       **amplitude** : :class:`python:float`, :obj:`default` 5 :obj:`mm`
           Horizontal excursion of each U-turn [m].

       **num_turns** : :class:`python:int`, :obj:`default` 8
           Number of 180° bends.

       **layer** : :class:`python:str`, :obj:`default` "TOP"
           EDB metal layer.

       **net** : :class:`python:str`, :obj:`default` "SIG"
           Net name assigned to the trace.











   .. rubric:: Examples

   >>> m = Meander(pitch=0.2e-3, trace_width=0.15e-3, amplitude=2e-3, num_turns=4)
   >>> edb = Edb("meander.aedb")
   >>> m._pedb = edb
   >>> m.create()
   >>> f"{m.analytical_z0:.1f} Ω"
   '50.1 Ω'
   >>> m.electrical_length_deg(1e9)
   59.8



   ..
       !! processed by numpydoc !!


.. py:currentmodule:: Meander

Overview
--------

.. tab-set::



   .. tab-item:: Methods

      .. list-table::
          :header-rows: 0
          :widths: auto

          * - :py:attr:`~electrical_length_deg`
            - Electrical length of the meander at the specified frequency.
          * - :py:attr:`~create`
            - Draw the meander in the attached EDB cell and calculate its


   .. tab-item:: Properties

      .. list-table::
          :header-rows: 0
          :widths: auto

          * - :py:attr:`~analytical_z0`
            - Micro-strip characteristic impedance using the Hammerstad & Jensen


   .. tab-item:: Attributes

      .. list-table::
          :header-rows: 0
          :widths: auto

          * - :py:attr:`~pitch`
            - 
          * - :py:attr:`~trace_width`
            - 
          * - :py:attr:`~amplitude`
            - 
          * - :py:attr:`~num_turns`
            - 
          * - :py:attr:`~layer`
            - 
          * - :py:attr:`~net`
            - 
          * - :py:attr:`~substrate`
            - 
          * - :py:attr:`~length`
            - 






Import detail
-------------

.. code-block:: python

    from pyedb.libraries.rf_libraries.base_functions import Meander

Property detail
---------------

.. py:property:: analytical_z0
   :type: float


   
   Micro-strip characteristic impedance using the Hammerstad & Jensen
   closed-form expression.



   :Returns:

       :class:`python:float`
           Z0 in Ohm.













   ..
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Attribute detail
----------------

.. py:attribute:: pitch

.. py:attribute:: trace_width

.. py:attribute:: amplitude

.. py:attribute:: num_turns
   :value: 8


.. py:attribute:: layer
   :value: 'TOP'


.. py:attribute:: net
   :value: 'SIG'


.. py:attribute:: substrate

.. py:attribute:: length
   :value: 0.0




Method detail
-------------

.. py:method:: electrical_length_deg(freq: float) -> float

   
   Electrical length of the meander at the specified frequency.


   :Parameters:

       **freq** : :class:`python:float`
           Frequency in Hz.

   :Returns:

       :class:`python:float`
           Phase shift in degrees.













   ..
       !! processed by numpydoc !!

.. py:method:: create() -> bool

   
   Draw the meander in the attached EDB cell and calculate its
   physical length.



   :Returns:

       :ref:`bool <python:bltin-boolean-values>`
           True on success.













   ..
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