Electronics > RF, Microwave, Ham Radio

Spectrum Analyzer antennas

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bson:
I just got a Signal Hound SA44B and I'm looking for suggestions for a few different antennas... preferably 50ohm, with SMA connector.

An adjustable/telescoping 50ohm antenna for 360 degree surveys.

An 2.4G ISM band antenna, 50ohm.  (Tunable?)

A directional survey antenna, perhaps 100M-2.4GHz?  (Yagi?)  To locate sources of interference in my lab.

I'm not a ham or anything... so I'm kind of lost when it comes to the nitty gritty of finding suitable antennas.  :-//

retrolefty:

--- Quote from: bson on June 14, 2016, 05:54:10 pm ---I just got a Signal Hound SA44B and I'm looking for suggestions for a few different antennas... preferably 50ohm, with SMA connector.

An adjustable/telescoping 50ohm antenna for 360 degree surveys.

An 2.4G ISM band antenna, 50ohm.  (Tunable?)

A directional survey antenna, perhaps 100M-2.4GHz?  (Yagi?)  To locate sources of interference in my lab.

I'm not a ham or anything... so I'm kind of lost when it comes to the nitty gritty of finding suitable antennas.  :-//

--- End quote ---

 Yagi is a narrow bandwidth antenna so not a good choice. Directivety and wide bandwidth are mostly conflicting requirements.

Emo:
If portability is also in scope, log periodic antenna made on printed circuit boards are quiet useful for broadband measurements.
wa5vjb does sell these and are relative cheap.(400 Mhz - 11 Ghz).

tggzzz:
If you want a non-directional wideband antenna, discones are easy to make: SMA connector plus 5 wires of non-critical lengths and at non-critical angles :)

bson:

--- Quote from: retrolefty on June 14, 2016, 06:05:44 pm --- Yagi is a narrow bandwidth antenna so not a good choice. Directivety and wide bandwidth are mostly conflicting requirements.

--- End quote ---
So let's start with something suitable for the ISM band(s)...

But a microwave yagi should be pretty small, so several could easily be combined in a single enclosure, no?

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