H
SECTION H — ELECTRICITY
 H01
BASIC ELECTRIC ELEMENTS
 H01

Note(s)

Processes involving only a single technical art, e.g. drying, coating, for which provision exists elsewhere are classified in the relevant class for that art.

 H01P
WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B; aerials H01Q; networks comprising lumped impedance elements H03H)
 H01P

Note(s)

In this subclass, the following expression is used with the meaning indicated:

  • "waveguide type" as applied to transmission lines includes only high-frequency coaxial cables or Lecher lines, and as applied to resonators, delay lines, or other devices includes all devices having distributed inductance and capacitance.

 H01P 1/00
Auxiliary devices (coupling devices of the waveguide type H01P 5/00)
 H01P 1/02
·  Bends; Corners; Twists
 H01P 1/04
·  Fixed joints (line connectors H01R; cable fittings H02G 15/00)
 H01P 1/06
·  Movable joints, e.g. rotating joints
 H01P 1/08
·  Dielectric windows (coupling devices for transit-time tubes H01J 23/36)
 H01P 1/10
·  for switching or interrupting
 H01P 1/11
·  ·  by ferromagnetic devices  [3]
 H01P 1/12
·  ·  by mechanical chopper
 H01P 1/14
·  ·  by electric discharge devices (discharge devices H01J 17/64)
 H01P 1/15
·  ·  by semiconductor devices  [2]
 H01P 1/16
·  for mode selection, e.g. mode suppression or mode promotion; for mode conversion (linking dissimilar lines or devices H01P 5/08)  [3]
 H01P 1/161
·  ·  sustaining two independent orthogonal modes, e.g. orthomode transducer  [3]
 H01P 1/162
·  ·  absorbing spurious or unwanted modes of propagation  [3]
 H01P 1/163
·  ·  specifically adapted for selection or promotion of the TE01 circular-electric mode  [3]
 H01P 1/165
·  for rotating the plane of polarisation  [2]
 H01P 1/17
·  ·  for producing a continuously rotating polarisation, e.g. circular polarisation  [2]
 H01P 1/175
·  ·  using Faraday rotators  [3]
 H01P 1/18
·  Phase-shifters (H01P 1/165 takes precedence; coupling devices with variable coupling factor H01P 5/04)  [2]
 H01P 1/185
·  ·  using a diode or a gas filled discharge tube  [3]
 H01P 1/19
·  ·  using a ferromagnetic device  [3]
 H01P 1/195
·  ·  ·  having a toroidal shape  [3]
 H01P 1/20
·  Frequency-selective devices, e.g. filters (resonators H01P 7/00)
 H01P 1/201
·  ·  Transverse electromagnetic filters (H01P 1/212, H01P 1/213, H01P 1/215, H01P 1/219 take precedence)  [3]
 H01P 1/202
·  ·  ·  Coaxial filters (cascaded coaxial cavities H01P 1/205)  [3]
 H01P 1/203
·  ·  ·  Strip line filters  [3]
 H01P 1/205
·  ·  ·  Comb or interdigital filters; Cascaded coaxial cavities (H01P 1/203 takes precedence)  [3]
 H01P 1/207
·  ·  Hollow waveguide filters (H01P 1/212, H01P 1/213, H01P 1/215, H01P 1/219 take precedence)  [3]
 H01P 1/208
·  ·  ·  Cascaded cavities; Cascaded resonators inside a hollow waveguide structure (H01P 1/205 takes precedence)  [3]
 H01P 1/209
·  ·  ·  comprising one or more branching arms or cavities wholly outside the main waveguide  [3]
 H01P 1/211
·  ·  ·  Waffle-iron filters; Corrugated structures  [3]
 H01P 1/212
·  ·  suppressing or attenuating harmonic frequencies (H01P 1/215 takes precedence)  [3]
 H01P 1/213
·  ·  combining or separating two or more different frequencies (H01P 1/215 takes precedence)  [3]
 H01P 1/215
·  ·  using ferromagnetic material  [3]
 H01P 1/217
·  ·  ·  the ferromagnetic material acting as a tuning element in resonators  [3]
 H01P 1/218
·  ·  ·  the ferromagnetic material acting as a frequency selective coupling element, e.g. YIG-filters  [3]
 H01P 1/219
·  ·  Evanescent mode filters  [3]
 H01P 1/22
·  Attenuating devices (dissipative terminating devices H01P 1/26)
 H01P 1/23
·  ·  using ferromagnetic material  [3]
 H01P 1/24
·  Terminating devices
 H01P 1/26
·  ·  Dissipative terminations
 H01P 1/28
·  ·  Short-circuiting plungers (coupling devices with variable coupling factor H01P 5/04)
 H01P 1/30
·  for compensation of, or protection against, temperature or moisture effects
 H01P 1/32
·  Non-reciprocal transmission devices (H01P 1/02-H01P 1/30 take precedence)  [3]
 H01P 1/36
·  ·  Isolators  [3]
 H01P 1/365
·  ·  ·  Resonance absorption isolators  [3]
 H01P 1/37
·  ·  ·  Field displacement isolators  [3]
 H01P 1/375
·  ·  ·  using Faraday rotators  [3]
 H01P 1/38
·  ·  Circulators  [3]
 H01P 1/383
·  ·  ·  Junction circulators, e.g. Y-circulators  [3]
 H01P 1/387
·  ·  ·  ·  Strip line circulators  [3]
 H01P 1/39
·  ·  ·  ·  Hollow waveguide circulators  [3]
 H01P 1/393
·  ·  ·  using Faraday rotators  [3]
 H01P 1/397
·  ·  ·  using non-reciprocal phase shifters (H01P 1/393 takes precedence)  [3]
 H01P 3/00
Waveguides; Transmission lines of the waveguide type
 H01P 3/02
·  with two longitudinal conductors
 H01P 3/04
·  ·  Lines formed as Lecher wire pairs
 H01P 3/06
·  ·  Coaxial lines (not suitable for handling frequencies considerably beyond the audio range H01B 11/18)
 H01P 3/08
·  ·  Microstrips; Strip lines
 H01P 3/10
·  Wire waveguides, i.e. with a single solid longitudinal conductor
 H01P 3/12
·  Hollow waveguides (H01P 3/20 takes precedence)
 H01P 3/123
·  ·  with a complex or stepped cross-section, e.g. ridged or grooved waveguides (H01P 3/14 takes precedence)  [3]
 H01P 3/127
·  ·  with a circular, elliptic, or parabolic cross-section  [3]
 H01P 3/13
·  ·  specially adapted for transmission of the TE01 circular-electric mode  [2]
 H01P 3/14
·  ·  flexible
 H01P 3/16
·  Dielectric waveguides, i.e. without a longitudinal conductor
 H01P 3/18
·  built-up from several layers to increase operating surface, i.e. alternately conductive and dielectric layers
 H01P 3/20
·  Quasi-optical arrangements for guiding a wave, e.g. focusing by dielectric lenses (quasi-optical devices per se H01Q 15/00)
 H01P 5/00
Coupling devices of the waveguide type (non-reciprocal devices H01P 1/32; for introducing or removing wave energy to or from the discharge in transit-time tubes H01J 23/36)
 H01P 5/02
·  with invariable factor of coupling (H01P 5/12 takes precedence)  [3]
 H01P 5/04
·  with variable factor of coupling
 H01P 5/08
·  for linking dissimilar lines or devices (H01P 1/16, H01P 5/04 take precedence; linking lines of the same kind but with different dimensions H01P 5/02)  [3]
 H01P 5/10
·  ·  for coupling balanced with unbalanced lines or devices
 H01P 5/103
·  ·  ·  Hollow-waveguide/coaxial-line transitions  [3]
 H01P 5/107
·  ·  ·  Hollow-waveguide/strip-line transitions  [3]
 H01P 5/12
·  Coupling devices having more than two ports (H01P 5/04 takes precedence)  [3]
 H01P 5/16
·  ·  Conjugate devices, i.e. devices having at least one port decoupled from one other port  [2]
 H01P 5/18
·  ·  ·  consisting of two coupled guides, e.g. directional couplers  [2]
 H01P 5/19
·  ·  ·  of the junction type  [3]
 H01P 5/20
·  ·  ·  ·  Magic-T junctions  [3]
 H01P 5/22
·  ·  ·  ·  Hybrid ring junctions  [3]
 H01P 7/00
Resonators of the waveguide type (structurally associated with transit-time tubes and interacting with the discharge therein H01J 23/18; microwave heating devices H05B 6/64)
 H01P 7/02
·  Lecher resonators
 H01P 7/04
·  Coaxial resonators
 H01P 7/06
·  Cavity resonators
 H01P 7/08
·  Strip line resonators  [3]
 H01P 7/10
·  Dielectric resonators  [3]
 H01P 9/00
Delay lines of the waveguide type (structurally associated with transit-time tubes and interacting with the discharge therein H01J 23/24)
 H01P 9/02
·  Helical lines
 H01P 9/04
·  Interdigital lines
 H01P 11/00
Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type (manufacture of coaxial cables H01B 13/00)