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Bobby Digital

Replies: 6
Views: 20783

Forum: Questions Related to Antenna Theory   Posted: Fri Jul 06, 2012 6:53 pm   Subject: How to Test a Common Dipole Antenna
Yeah, not very helpful for the only two posts you've ever made.

Dipole is a fine antenna to start with if you're new to the whole thing. The best piece of equipment for this is a VNA. Measure S ...
Bobby Digital

Replies: 2
Views: 10081

Forum: Questions Related to Antenna Theory   Posted: Wed Jul 04, 2012 12:14 am   Subject: Question Regarding VSWR Graph (Figure 3)
Great response. Hats off to you, bigSteve.
Topic: mimo vs phased array
Bobby Digital

Replies: 4
Views: 14021

Forum: Questions Related to Antenna Theory   Posted: Wed Dec 07, 2011 1:08 am   Subject: mimo vs phased array
So is the take away that...

MIMO systems can be thought of as multiple receivers, with one antenna each, receiving separate bit streams to improve the overall data rate

Whereas...

Phased arr ...
Bobby Digital

Replies: 6
Views: 16419

Forum: Questions Related to Antenna Theory   Posted: Fri Jun 17, 2011 7:31 am   Subject: Distance between nodes for virtual antenna arrays
Use a tape measure

How you can measure by a tape?

Have a friend hold one end for you as you hold the other.
Topic: vertical antenna
Bobby Digital

Replies: 1
Views: 9529

Forum: Questions Related to Antenna Theory   Posted: Fri Feb 25, 2011 12:03 am   Subject: vertical antenna
they're perpendicular to the ground
Topic: horizontal antenna
Bobby Digital

Replies: 1
Views: 9571

Forum: Questions Related to Antenna Theory   Posted: Fri Feb 25, 2011 12:02 am   Subject: horizontal antenna
they're parallel to the ground
Topic: signal reflection
Bobby Digital

Replies: 2
Views: 11077

Forum: Questions Related to Antenna Theory   Posted: Sat Jan 29, 2011 1:16 am   Subject: signal reflection
On the Small Loop Antenna section, the author says that:

As a result, these antennas are most often used as receive antennas, where impedance mismatch loss can be tolerated.

Since when is receiv ...
Bobby Digital

Replies: 4
Views: 14673

Forum: Questions Related to Antenna Theory   Posted: Fri Jan 14, 2011 10:34 pm   Subject: Brainstorm: Where would you like more efficient antennas?
For implantable medical devices (ICD's pacemakers) with rf radios in them, they would fall in line with what bigSteve said about size constrained hand held devices in that the tantamount need for as s ...

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