IPC 7 English version H01Q !A-H01Q 9/46

IPC ⁷ English version

H01Q-H01Q00946

H01Q 11/00 - H01Q 25/04

SECTION H – ELECTRICITY

H 01

BASIC ELECTRIC ELEMENTS

H 01 Q

AERIALS (microwave radiators for near-field therapeutic treatment A61N 5/04; apparatus for testing aerials or for measuring aerial characteristics G01R; waveguides H01P; radiators or aerials for microwave heating H05B 6/72)

Notes

(1)

This subclass covers:

–

in addition to the primary active radiating elements,

(i)

secondary devices for absorbing or for modifying the direction or polarisation of waves radiated from aerials, and

(ii)

combinations with auxiliary devices such as earthing switches, lead-in devices, and lightning protectors;

–

both transmitting and receiving aerials. [3]

(2)

This subclass does not cover devices of the waveguide type, such as resonators or lines, not designed as radiating elements, which are covered by subclass H01P.

(3)

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

–

"active radiating element" covers corresponding parts of a receiving aerial. [3]

Subclass Index

TYPES OF AERIALS

Loop type

H01Q 7/00

Waveguide type

H01Q 13/00

Other type: short; long

H01Q 9/00; H01Q 11/00

DEVICES FOR INFLUENCING RADIATED WAVES

Quasi-optical; absorbing

H01Q 15/00; H01Q 17/00

COMBINATIONS OF PRIMARY ACTIVE ELEMENTS WITH SECONDARY DEVICES

H01Q 19/00

COMBINATIONS OF AERIALS WITH ACTIVE CIRCUITS OR CIRCUIT ELEMENTS

H01Q 23/00

ARRANGEMENTS PROVIDING MORE THAN ONE RADIATION PATTERN

H01Q 25/00

AERIAL ARRAYS OR SYSTEMS

H01Q 21/00

SPECIAL ARRANGEMENTS

Details; orientation; simultaneity

H01Q 1/00; H01Q 3/00; H01Q 5/00

Details of, or arrangements associated with, aerials (arrangements for varying orientation of directional pattern H01Q 3/00)

Notes

(1)

This group covers only:

–

structural details or features of aerials not dependent on electric operation;

–

structural details or features applicable to more than one type of aerial or aerial element.

(2)

Structural details or features described with reference to, or clearly applicable only to, aerials or aerial elements of a particular type are classified in the group appropriate to that type.

Arrangements for de-icing; Arrangements for drying-out

Adaptation for subterranean or subaqueous use

Means for the lighting or illuminating of aerials, e.g. for purpose of warning

Means for collapsing aerials or parts thereof (collapsible loop aerials H01Q 7/02; collapsible H-aerials or Yagi aerials H01Q 19/04)

Telescopic elements

Supports; Mounting means (supporting conductors in general H02G 7/00)

for wire or other non-rigid radiating elements

Strainers, spreaders, or spacers

Means for stabilising aerials on an unstable platform

Resilient mountings

by structural association with other equipment or articles

with receiving set

with electric discharge tube

Adaptation for use in or on movable bodies (H01Q 1/08, H01Q 1/12, H01Q 1/18 take precedence) [3]

Adaptation for use in or on aircraft, missiles, satellites, or balloons [3]

Means for trailing aerials [3]

Adaptation for use in or on road or rail vehicles (telescopic elements H01Q 1/10; resilient mountings for aerials H01Q 1/20) [3]

Adaptation for use in or on ships, submarines, buoys, or torpedoes (for subaqueous use H01Q 1/04; retractable loop aerials H01Q 7/02) [3]

Structural form of radiating elements, e.g. cone, spiral, umbrella (H01Q 1/08, H01Q 1/14 take precedence)

formed by a conductive layer on an insulating support (conductors in general H01B 5/14)

Radiating elements coated with, or embedded in, protective material

Housings not intimately mechanically associated with radiating elements, e.g. radome

using equipment having another main function to serve additionally as an aerial (H01Q 1/28 to H01Q 1/34 take precedence)

Electric supply lines or communication lines

Earthing means; Earth screens; Counterpoises (earthing pins H01R 4/66)

Structural association of aerials with earthing switches, lead-in devices, or lightning protectors (lead-in devices H01B; lightning protectors, switches H01H)

Means for reducing coupling between aerials; Means for reducing coupling between an aerial and another structure (absorbing means H01Q 17/00)

Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system

varying the shape of the aerial or aerial system [3]

using mechanical movement of aerial or aerial system as a whole

for varying one co-ordinate of the orientation

over a restricted angle

for varying two co-ordinates of the orientation

to produce a conical or spiral scan

using mechanical relative movement between primary active elements and secondary devices of aerials or aerial systems

for varying the relative position of primary active element and a refracting or diffracting device

for varying relative position of primary active element and a reflecting device

wherein the primary active element is movable and the reflecting device is fixed

wherein the primary active element is fixed and the reflecting device is movable

varying the orientation in accordance with variation of frequency of radiated wave

varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching

varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture (H01Q 3/22, H01Q 3/24 take precedence)

varying the amplitude [3]

varying the phase [3]

by mechanical means [3]

by electrical means (active lenses or reflecting arrays H01Q 3/46) [3]

with variable phase-shifters [3]

the phase-shifters being digital [3]

with phasing matrix [3]

using frequency-mixing [3]

varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element [3]

Active lenses or reflecting arrays [3]

Arrangements for simultaneous operation of aerials on two or more different wavebands (length of elements adjustable H01Q 9/14; combinations of separate active aerial units operating in different wavebands and connected to a common feeder system H01Q 21/30) [3]

Resonant aerials [3]

for operation of centre-fed aerials which comprise a single, or two or more collinear, substantially straight elongated active elements [3]

Loop aerials with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Collapsible aerials; Retractable aerials

Screened aerials (H01Q 7/02, H01Q 7/06 take precedence)

with core of ferromagnetic material (H01Q 7/02 takes precedence)

Ferrite rod or like elongated core

Electrically-short aerials having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements (loop aerials H01Q 7/00; waveguide horns or mouths H01Q 13/00; slot aerials H01Q 13/00; combinations of active elements with secondary devices to give desired directional characteristic H01Q 19/00; combinations of two or more active elements H01Q 21/00)

Non-resonant aerials

Resonant aerials

Details

Junction boxes specially adapted for supporting adjacent ends of collinear rigid elements

Junction boxes specially adapted for supporting adjacent ends of divergent elements

adapted for adjustment of angle between elements

Length of element or elements adjustable (telescopic elements H01Q 1/10)

with feed intermediate between the extremities of the aerial, e.g. centre-fed dipole (H01Q 9/44 takes precedence)

Vertical disposition of the aerial

Two collinear substantially straight active elements; Substantially straight single active elements (H01Q 9/28 takes precedence)

Rigid rod or equivalent tubular element or elements

Shunt feed arrangements to single active elements, e.g. for delta matching

with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength (resonant loop aerials H01Q 7/00)

Spiral aerials [3]

Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines (biconical horns H01Q 13/04)

with feed to end of elongated active element, e.g. unipole (H01Q 9/44 takes precedence)

Vertical arrangement of element (H01Q 9/40 takes precedence)

Mast, tower, or like self-supporting or stay-supported aerials

with top loading

with counterpoise (with counterpoise comprising elongated elements coplanar with the active element H01Q 9/44)

Element having extended radiating surface

with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Scimitar aerials [3]

with plurality of divergent straight elements, e.g. V-dipole, X-aerial; with plurality of elements having mutually inclined substantially straight portions (turnstile aerials H01Q 21/26)

with rigid elements diverging from single point

H01Q 11/00 - H01Q 25/04