2.3GHz Filter


John Lemay
 

Andy

 

It can certainly be retuned for 2300MHz. Ideally, I’d like to offer a filter 30MHz wide that is equally good at 2300 and 2320MHz, but when centred at 2010MHz the through response begins to fall off a little at +/-10. It would be a compromise I’m not happy with – but maybe that’s just me being obstinate!

 

Regards

 

John

 

 

From: UKMicrowaves@groups.io [mailto:UKMicrowaves@groups.io] On Behalf Of Andy G4JNT
Sent: 30 January 2023 09:56
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] 2.3GHz Filter

 

"Nominal bandwidth of 30MHz centred on 2320MHz."

So it doesn't cover the 2300MHz NOV band properly?

 

 

 

 

On Mon, 30 Jan 2023 at 09:53, John Lemay <john@...> wrote:

Hello all

I'm pleased to let you know that I have another new bandpass filter
available in my Aerial Parts shop. This one is a narrow bandwidth, 5 pole
interdigital filter for 13cms. It's particularly aimed at tricky situations
where nearby mobile phone signals are a problem.

The loss is just over 1dB, which makes it a practical proposition to place
this filter in front of the first active device - the place where it will be
of most use.

www.aerial-parts.co.uk/filters

Regards

John G4ZTR






Andy G4JNT
 

"Nominal bandwidth of 30MHz centred on 2320MHz."
So it doesn't cover the 2300MHz NOV band properly?




On Mon, 30 Jan 2023 at 09:53, John Lemay <john@...> wrote:
Hello all

I'm pleased to let you know that I have another new bandpass filter
available in my Aerial Parts shop. This one is a narrow bandwidth, 5 pole
interdigital filter for 13cms. It's particularly aimed at tricky situations
where nearby mobile phone signals are a problem.

The loss is just over 1dB, which makes it a practical proposition to place
this filter in front of the first active device - the place where it will be
of most use.

www.aerial-parts.co.uk/filters

Regards

John G4ZTR







John Lemay
 

Hello all

I'm pleased to let you know that I have another new bandpass filter
available in my Aerial Parts shop. This one is a narrow bandwidth, 5 pole
interdigital filter for 13cms. It's particularly aimed at tricky situations
where nearby mobile phone signals are a problem.

The loss is just over 1dB, which makes it a practical proposition to place
this filter in front of the first active device - the place where it will be
of most use.

www.aerial-parts.co.uk/filters

Regards

John G4ZTR